My interest in on-line learning technologies stems mainly from a desire to make the world a better place. I firmly believe that the world would be better, only if people learnt more, and I believe with equal fervour that this is more readily achievable with technology as it is now than at any point in the past.
Of course, in order to spread the word you need to be able to do so at the minimum cost, so that is why places like Google and Wikipedia are the place to start (ahem, after you've stumped up for broadband of course).
Kineo are another group who believe very much in the wide availability of low cost learning. They use the Open Source LMS Moodle for example, something I would very much like to get to grips with, as well as recommending a host of low cost e-learning tools in one of their various free reports.
Have a look for yourself and see how the world can be made better for nothing!