Serendipity35 - Open Everything

A New AI Hub from Microsoft & The Open University

ronkowitz@gmail.com (Kenneth Ronkowitz) — Thu, 30 Apr 2026 16:20:00 +0000

This AI Hub from Microsoft & The OU is a collection allowing you to explore free, accessible courses designed to build your confidence and skills in artificial intelligence. Whether you’re just starting out or looking to deepen your knowledge, the AI Hub will support your learning journey with expert-led, trusted, easy-to-use resources created by The OU and Microsoft.

Not labeled as a MOOC (a term that seems to have fallen away in the past decade) it is a similar kind of open course, not for credit but for learning.

AI Fluency is a beginner-friendly learning path designed to build confidence and understanding in artificial intelligence. Through a series of practical sessions, learners explore AI fundamentals, generative AI, responsible AI principles, and the real-world impact of AI across work, accessibility, and society. The course also introduces Microsoft Copilot, showing how AI tools can support creativity, productivity, and everyday problem solving.
Suitable for students, professionals, and leaders alike, AI fluency helps demystify AI and equips learners with the knowledge to engage with AI technologies thoughtfully, responsibly, and effectively.

Work Smarter with AI is a 65 minute, one module, learning path to help you work better and unleash your creativity with Microsoft Copilot. In this learning path, you'll explore how to use Microsoft Copilot to help you research, find information, and generate effective content.
Prerequisites: Familiarity with Microsoft productivity applications, like Word, Excel, Outlook, and PowerPoint.

Elgg

ronkowitz@gmail.com (Kenneth Ronkowitz) — Mon, 26 Jan 2026 12:05:00 +0000

Logo Elgg.org, source

I wrote here about the open-source software called Elgg almost two decades ago. (Not to be confused with elgg.net, a social networking site for educators back around 2006, which no longer exists.) Elgg is open-source social networking software that provides individuals and organizations with the components needed to create an online social environment. It offers blogging, microblogging, file sharing, networking, groups, and a number of other features. It was also the first platform to bring ideas from commercial social networking platforms to educational software. It was founded in 2004 by Ben Werdmuller and Dave Tosh

I view those older posts and many of the ones on this site that date back almost 20 years as historical documents of a sort. I'm sometimes tempted to update them, and I do sometimes fix a broken image or a proofreading mistake, but they may have some value as documentation of another time in edtech history.

How many of the alternatives to commercial course management systems from my 2006 list still exist? I looked up Elgg to see if it was still in use. The Wikipedia entry shows an impressive list of sites that are using Elgg. The list includes Oxfam, the Australian, Dutch, Canadian, and British Governments, New Zealand Ministry of Education, State of Ohio, USA, The World Bank, UNESCO, and the United Nations Development Programme.

Here is one of those old posts - now just historic.

Elgg is software for building a personal learning landscape. The software is from the United Kingdom. I first saw it mentioned on the Moodle site and thought it was a kind of plug-in to Moodle. It uses blogs, e-portfolios, shared files, RSS feeds, and other "social networking" tools. I thought it had been designed for educational use, but looking through the users, it has a good number of general users.

Their site has a demo community set up, and their resources/links are set up using an embedded wiki. You can create a free user account and get space for a blog, RSS feeds, an aggregator to read other people's content, and space to store your own resources (files). As a guest, you can still view items made public in user profiles - here's mine

Since their new release is version 0.601, this is obviously new beta software. So does this replace a Moodle or Blackboard, or supplement it, or serve a different purpose?

My collaborator here, Tim Kellers, installed the Elgg software here at NJIT, so drop by and register if you want to try it out. I also suggest you go to the elgg.net site and create an account so you can become part of that educator community. I have made some interesting contacts outside the United States from there. Right now, I am just having this blog's content mirrored to my Elgg blog account by using an RSS feed (yeah, there are some formatting & image issues doing that).

http://webapps.saugus.k12.ca.us/community - California's Saugus Unified School District uses it, and as you can see, it is a secure environment with user id and password access. However, take a look at their user introduction pdf document. It's a nice 9-page intro with screenshots. Another K12 district getting ahead of the colleges!

Ready for the test question? Elgg is to Elgg.net as ______ is to Wikipedia. (Answer: Mediawiki)

Well, to deal with that confusion (or further confuse you), elgg.net will now be edufilter.org.

Here's an email that went out to users from the Elgg folks:

Changes are afoot at Elgg.net!
Actually, you've been accustomed to change throughout the existence of the site since we started it in 2004. New features pop up all the time, and we think you'll be pleased to hear that this isn't going to stop soon.
However, we're going to change the name. Next Wednesday, Elgg.net will become Edufilter.org.
This is because, for a lot of people, Elgg.net is Elgg. Granted, it's a confusing name. But Elgg is a free, open source, white label social networking framework that anyone can install on their own servers. Want it running at your institution? Point your elearning folks at http://elgg.org.
Elgg.net, meanwhile, is a social network for education - and therefore, we think Edufilter is probably a better name.
You've probably got concerns, so let's deal with the most important:
#1: We're not going to break any of your links. While the front page of Elgg.net will forward to the main Elgg software homepage, anyone visiting elgg.net/your-username will still get to your page. We have no plans to end this, so if your address is printed on materials, don't worry. Everything's fine.
#2: The site will not be discontinued. It continues to be our flagship installation.
Furthermore, making the site overtly educational means we can give you more directed content and features. Sponsorship opportunities are available; if you'd like to promote your product or service available to some of the world's leading lights in elearning, let us know.
Best regards,
The Curverider team

A Few Other Posts About This

https://serendipity35.net/index.php?/archives/489-Putting-All-Your-Educational-Eggs-In-One-Basket.html

https://serendipity35.net/index.php?/archives/83-More-of-the-Competition-in-the-CMS-Market.html

https://serendipity35.net/index.php?/archives/265-A-directory-to-Web-2.0-Companies.html

Podcasting and iTunes U

ronkowitz@gmail.com (Kenneth Ronkowitz) — Fri, 29 Aug 2025 10:06:00 +0000

Podcasts at Apple are turning 20 years old, but Apple officially discontinued iTunes U at the end of 2021. The platform, which launched in 2007, was designed to help educators distribute lectures, assignments, and other learning materials through the iTunes ecosystem. It was especially popular with universities and K–12 institutions - for a time.

As Apple shifted its focus to newer tools like Classroom and Schoolwork, which offer more interactive and integrated experiences for iPads and Macs, iTunes U gradually became outdated. Apple announced the phase-out in 2020, giving educators time to transition to an alternative platform. That was partially why there was a temporary bump up in schools participating in MOOCs.

I was at NJIT 20 years ago and spearheaded the university's inclusion in the initial "sweet 16" schools in iTunes U. It was important in its time, and I would update the new schools as they were added. I was disappointed in Apple's lack of support for the academic version of podcasting and was further disappointed when they dropped it after 14 years, but it had been losing its lustre. iTunesU (and iTunes itself) didn't really move forward, and the newer apps for educators allowed us to guide students through lessons in real time, share assignments, and track progress more efficiently.

I searched for some of those old Serendipity35 iTunes U posts. Very nostalgic in 2025.

These are some of the general online learning platforms where some of that content was repurposed.
Khan Academy – Free, nonprofit platform offering lessons in math, science, economics, and more. Great for K–12 and beyond.
Coursera – Offers courses from top universities like Stanford and Yale. Many are free to audit, with paid certificates available2.
Udemy – A massive marketplace for courses on everything from coding to photography. Often discounted and self-paced.
FutureLearn – UK-based platform with university-led courses and microcredentials.
Institutional Tools
Canvas LMS and Blackboard Learn – Widely used by schools and universities for managing coursework, assignments, and communication.
Moodle – Open-source learning management system used by many institutions worldwide.
Open Educational Resources
Wikiversity and Wikibooks – Free educational content created and curated by volunteers. Great for self-learners.
Classroom & Student Engagement
ClassDojo – Focuses on classroom behavior and communication, especially for younger students.
Remind - Helps teachers communicate with students and parents via messaging.
Lumio – Turns lessons into interactive, collaborative experiences.

Free Online Educational Summit July 28-29

ronkowitz@gmail.com (Kenneth Ronkowitz) — Fri, 22 Jul 2022 18:25:00 +0000

Course Hero is a website where educators (and students) can find free resources. You need to create a free Verified Educator account which will allow you to access sample assignments, case studies, lectures, labs, syllabi, and more. These resources have been shared by higher education faculty and students. There are 80,000+ college faculty using the site to get learning resources and inspiration for your own teaching.

Your ability to download resources is gained by you uploading your original study materials. You’ll earn free unlocks for sharing your knowledge - 5 unlocks for every 10 documents submitted.

They are hosting their free 2-day 5th annual Education Summit July 28–29 from 9 a.m. – 4 p.m. PT. Their belief that teaching is a shared practice and the rapidly shifting educational landscape requires us to lean into our roles as both instructors and learners. You can join thousands of fellow educators, research experts, and instructional designers to unpack the latest in learning and pedagogy.

I first used their website when I was building a new course and was curious if any other teachers had uploaded their syllabi for a similar course. I found half a dozen that I was able to use to get started, including ones with links to readings I might also use.

Machine Learning MOOC Updated

ronkowitz@gmail.com (Kenneth Ronkowitz) — Thu, 14 Jul 2022 11:05:00 +0000

Photo by Christina Morillo

Andrew Ng's Machine Learning course on Coursera has been revamped and updated and it is getting good student ratings.

There are fewer online courses that I consider to be true MOOCs now. Massive is small. Open is more closed. But the "OC" portion remains for many. The three courses that make up the Machine Learning Specialization offered by DeepLearning.AI and Stanford on the Coursera platform still fit the MOOC definition more closely.

You can earn a certificate at the end, and enjoy the full experiences including quizzes and assignments if you enroll and pay a monthly subscription but the courses are free (Open) to audit and view the course materials. The Massive in this course is massive with over 20,000 students enrolled.

Andrew Ng is the co-founder of Coursera and was the founding lead of Google’s Brain Project, and served as Chief Scientist at Baidu. He then did two artificial intelligence startups - Deeplearning.ai (a training company founded in 2017) and Landing.ai (for transforming enterprises with AI). He remains an adjunct professor at Stanford University. His course on Machine Learning was one of the very first courses from Coursera when it first launched in 2012. I audited the course that year though I knew the content was way above my abilitiees but I was curious as to the structure of the course from a design perspective.

At that time, Machine Learning was a new concept and was close to applied statistics. Ng goes way back because his Stanford lectures were on YouTube in 2008 and got 200,000 views. Then, he converted them to an online format in Fall 2011 and they were offered for free. He had 104,000 students and 13,000 of them gained certificates.

On the tech side, this updated version:
uses Python rather than Octave
expanded list of topics including modern deep learning algorithms, decision trees, and tools such as TensorFlow
new ungraded code notebooks with sample code and interactive graphs to help you visualize what an algorithm is doing
programming exercises
practical advice section on applying machine learning based on best practices from the last decade

A More Musky Twitter

ronkowitz@gmail.com (Kenneth Ronkowitz) — Fri, 27 May 2022 17:00:00 +0000

Does Musk want to set Twitter free?
Image by mohamed Hassan from Pixabay

On April 14, 2022, business magnate Elon Musk proposed to purchase social media company Twitter, Inc. for $43 billion. He had previously acquired 9.1 percent of the company's stock for $2.64 billion and thereby became its largest shareholder. Twitter invited Musk to join its board of directors and he accepted and then changed his mind. Musk is certainly one of the most unorthodox business leaders of our time. The general opinion seems to be that he would likely make changes to the platform that go well beyond revamping its content policies.

Twitter was generally not in favor of Musk taking control and so used what is known as a "poison pill" strategy. They would allow shareholders to purchase additional stock in the event a buyout should occur. But on April 25, Twitter's board of directors unanimously accepted Musk's buyout offer of $44 billion. There was also talk that Musk would make the company private.

Besides the business aspects of all this, many users were apprehensive about a Musk takeover and really about anyone taking over. The fear was not about stock prices or advertising. It is about how the platform would change.

Elon Musk published his first tweet on his personal Twitter account in June 2010. He had 80 million followers at the time of the purchase. Musk's most vocal comment about the purchase was that he wanted to protect "freedom of speech." Of course, that is something protected by the government and doesn't really apply to most private companies.

Elizabeth Lopatto of The Verge made some predictions about what a Musk takeover might mean. She thought that a mass employee exodus might occur. She also saw the reinstatement of some accounts, such as Donald Trump's account.

The New York Times wrote that Musk's acquisition was "about controlling a megaphone" rather than free speech. Kate Klonick, a law professor at St. John's University, went as far as to say that allowing "all free speech" would open the door to the spread of pornography and hate speech on Twitter.

A number of commenters have said that Musk's purchase just adds fuel to the controversy about the power that wealthy people have in influencing the democratic process.

Musk has said that he thought that Twitter should make the algorithm that determines what users see open-source and more transparent.

Walled Gardens of Technology

ronkowitz@gmail.com (Kenneth Ronkowitz) — Wed, 23 Jun 2021 21:28:00 +0000

The term "walled garden" once only meant a literal garden that was enclosed by walls. Though I tagged this post as "tech" and "Open Everything," this topic is not about things being open at all - which of course is a topic of those who discuss openness.

There are literal walled gardens in the world. These gardens are surrounded by walls to keep out animals, unwanted human visitors and in some places, the walls shelter the garden from wind and frost. They can also be decorative and there may be smaller walls within the walled perimeter. These days if you hear the term there is a good chance that it is a figurative walled garden which is a closed platform or closed technology ecosystem. Since we borrowed the term "ecosystem" from nature and have since created manmade ecosystems (or damaged natural ones), it makes sense that we turn botanical garden ecosystems into technology ecosystems.

A tech walled garden is a closed platform or closed technology ecosystem which is a software system wherein the carrier or service provider has control over applications, content, and/or media.With that control, they can restrict convenient access to non-approved applicants or content.

We contrast this with an open platform, wherein consumers generally have unrestricted access to applications and content.

Whether on the broader Internet or a smaller network, a walled garden is a restricted section that only approved users can access. I first encountered this in the earliest days of the Internet with the walled garden of the school nework where I taught. Their server granted access only to students and staff and even that larger walled garden had smaller walled sections withing delegated only to faculty or administration.

It all sounds like something safe - maybe even comfortingly safe. A walled garden can also refer to a closed or exclusive set of information services where a user is unable to leave the closed environment without the owner giving limited points of entry. One example of this comes from Apple’s hardware, software and services work. They work well together as long as you use Apple's devices and services. (see this Wall Street Journal video report)

The Apple walled garden is so closed that it has been targeted for antitrust scrutiny. The recent Epic vs. Apple case is an example of that. The Fortnite video game developer made the case that Apple's walled garden is a monopoly that forces developers to use Apple's in-app purchase system, which gives Apple a 30% cut of all sales.

Walled gardens - literal and figuartive, botanical and technological - have their purposes and will continue to exist, but it is very nice to see gardens and tech ecosystems that are open too.

Schoolhouse World

ronkowitz@gmail.com (Kenneth Ronkowitz) — Mon, 19 Apr 2021 10:48:00 +0000

The organization schoolhouse.house hits a lot of things that I am interested in wth education. It is a free, peer-to-peer tutoring platform on which anyone, anywhere can receive live help. It is no surprise that Sal Khan of Khan Academy is working with them (CEO) since the share similar goals.

The thing that sets schoolhouse.world apart from other free services (such as MOOCs) is that you can earn shareable certifications in the topics you learn about. You also have the option to become a tutor in the topics that you have mastered.

Their current focus is on high school math and SAT prep, with plans to expand to other areas soon. All the small-group tutoring sessions happen over Zoom. During the pandemic and learning from home by choice or necessity, this is surely something many of us felt there was a need for in the K-12 world.

But there is also a higher education connection. The University of Chicago is one institution supporting schoolhouse.world in their effort to connect high-quality peer tutors with students around the world. Those tutors also have the opportunity to showcase their contributions on their college applications.

Jim Nondorf, Dean of Admissions at the University, and Sal Khan joined a group of schoolhouse.world tutors on Zoom to discuss the new program and what it means for the future.

Says Khan, "It was wonderful to hear the stories of these amazing young people admitted to one of the top universities in the world based on their ability to certify their knowledge and tutor others! I suspect more colleges like University of Chicago will value this type of evidence soon."

I hope Sal's suspicion will be confirmed.