Financial times are tough in the United States and around the world. That means its all the more important to consider the organizations which rely on public donations to accomplish their mission. This page lists a few of the organizations that I donate to when I get some spare money, please consider helping out.

OpenBSD Project
Creators of the free, functional, and secure operating system that runs this site (and many of my other computers as well), they can always use a few more bucks to help fund development on the best operating system in the world. You can help out by purchasing CD sets and making a donation on their order site.
Crohn's and Colitis Foundation of America
The CCFA is a non-profit organization dedicated to improving the quality of life for patients with Crohn's disease and ulcerative colitis through research and advocacy. You can make a donation or join the foundation from their website.
TUG (TeX User Group)
The TeX User Group operates on the behalf of people who are interested in typography and font design, acting as a hub for TeX-related activities. TUG sponsors several conferences around the world every year, and publishes the TUGboat journal of TeX-related papers. Donations through TUG can be allocated to several different projects, including: LuaTeX, LaTeX 3, MacTeX, CTAN, and the TeX Gyre fonts. For more information, see the TUG website.
Sea Shepherd
As followed in the current Animal Planet show "Whale Wars" and the 2006 documentary film "Shark Water", Sea Shepherd is an environmental enforcement organization dedicated to enforcing international marine life protection laws. Because most nations don't even enforce marine laws in their own waters, Sea Shepherd steps in to prevent harm to ocean creatures such as sharks and whales by disrupting illicit activity. You can donate to Sea Shepherd and volunteer for them on their website.