Personal Learning Tools

I'm interested in developing some kind of a personal wiki to use as a learning log in my program. The same concepts and authors recur in different contexts, in different courses. Also, it's important to be able to inter-relate concepts. I can imagine doing this on Wikipedia, but of course that's not the venue for most of that work. I'd also love to create graphical representations, of the sort that can be created with Inspiration.

I've used Semantica in the past. It's a terrific product, but it has some serious limitations - or it did. I see now on the Semantica site that there is a new version that may do everything I've ever wanted it to do. I'll have to check out its features and see how much it costs. It might be something that I need to buy.