You may recall that I mentioned Learnist the other day, which is a tool that allows you to create learning boards, by adding content from websites, YouTube video, your own content and so on. At the time I wasn't able to do much since my invite hadn't come through, but now it has, and I've had a go with it. You can take a look at my short test board: Urban Exploring or URBEX | Learnist
I found it really easy to use - give your board a title, click it into a category, and then start adding stuff. This is made easier by the little 'Learn It!' book marklet that you can pop into your browser. You can then simply add stuff as you find it. In this case it's very much like Squidoo although each segment is much larger, rather than a single line of text, it's a board in its own right. Visitors can add comments and share via social media as you would expect.
All told - simple and easy. It would appeal to students and educators alike. Take a look, and see what you think.