Habitat for Humanity is a non-profit organization dedicated to ending poverty housing throughout the world. If you are a University of Illinois student, you can find the campus chapter in the Union, Rm. 280 #268.in the Union, Rm. 280 #268.

Human Rights Watch is the best resource I have found for information on social injustice, political turmoil, and coverage of human rights abuses. The coverage is excellent and includes lots of suggestions on what you can do to help end the oppression of human liberties.
If you dig the political arena you might try Common Cause, a citizens group dedicated to lobbying for accessible, honest government.
This is one of the best political resources on the Internet. Forget those phony TV ads, get the facts about candidates at Project Vote Smart's, web site. They provide tons of information on most federal and state political races. If it's near voting time or you just want to keep track of what your senator is doing, drop by.