Paid Employment at Non-profits (Score 1)

I'm not sure that you'll find employment opportunities for all charities listed on one page. I would advise thinking about the type of charity you want to work for and then searching for umbrella organisations. For example, if you wanted to work for a museum (many of which are trying to digitise their collections, set up web sites, etc, but can not afford to pay market rates for programmers and web designers) you can try looking at http://www.globalmuseum.org/ which lists vacancies at museums all over the world, or at the Museum Computer Group's job homepage (http://www.mcn.edu/jobs.htm) which has several really interesting jobs at the moment.