Links:

EFF (Electronic Frontier Foundation)
A very good privacy/digital rights site. In their own words, "When our freedoms in the networked world come under attack, the Electronic Frontier Foundation (EFF) is the first line of defense." They've been around since 1990, and have plenty of experience with the issues consumers face in the current technological era.

SourceForge
Looking for no-cost software? Got a great idea for a software project, but don't know where to host it? Look here first. SourceForge is your #1 stop for downloading or developing free (that is to say, open-source) software.

Mozilla
The Mozilla Foundation is a non-profit organization devoted to bettering the web by developing free, no-cost software (such as the Firefox web browser and Thunderbird mail client) for anyone to use and improve as they see fit.