Techno-Charities?

Beryllium Sphere(tm) asks: "Where can a nerd give away money to support nerdly causes like showing bright children that they have a future, putting humanity in space, giving nonprofits a web presence, or providing counseling for engineers who work in psychotic companies? The Crypto Rights Foundation (http://www.cryptorights.org) is one example of what I'm asking for. They provide tech support for human rights organizations that use PGP. What nerd-oriented charities are people willing to recommend?"