As a very strong believer in the following quote:

A child's exposure to technology should never be predicated on an ability to afford it.

I work constantly to instruct people about linux. Sometimes, I've been punished for my views, by incompetent, illiterate power abusers (BTW, here's an excellent book about power abusers found in organizations, including schools, etc. ;-)). But like many others, I'll never give up. I've spent many years listening to the excuses and propaganda about why it can't be done, etc. Well, as shown by the many references on this blog, it IS being done, around the world, in all languages (more languages than windows, because MS considers some language groups, etc. "too small" or "not profitable, not worth the effort, the market is too small, etc.". In other words, don't let the nay sayers, and those who wish to exploit others, win the game! :-) Help spread the word.