Java rediscovered

I was casting around recently for some resources, particularly simulation type materials, with no particular purpose in mind, when I came across Java Applets, (Java programs that run in a web page), in fact I had known about these for ages, but for some reason had not made the connection with using them as learning object assets, so I kind discovered them for the second time. Often freely available, Java Applets seem in the main to have been developed for science and mathematical type applications, have a look at this collection, though there are many others out there such as this representation of various sort algorithms, it's always good to find something that you hadn’t realised you’d lost.