The following links (which are in no particular order or category) are organizations, projects, and collaboratives that I find important and relevant.

SDF Public Access UNIX System – http://www.sdf.org
Duh! Who doesn’t want public access UNIX?

Electronic Frontier Foundation – http://www.eff.org
A watchdog and legal group fighting for (and defending) everyone’s digital rights. They are a US 501(c)(3) nonprofit organization relying on our donations to keep going.

Free Software Foundation – http://www.fsf.org
A US 501(c)(3) non-profit organization working to secure freedom for computer users by promoting the development and use of free software (including documentation) and by campaigning against threats to computer user freedom. Free software, Free society.

National Rifle Association of America – http://www.nra.org
The National Rifle Association of America is the largest 2nd Amendment centric civil rights organization in the United States. All sections, parts, and aspects of the US Constitution and Bill of Rights are important, exist for a reason, and should all be equally defended…not just the ones we like or our political party of choice agrees with. Every human being has the right to defend themselves from imminent harm or death.

DistroWatch – http://www.distrowatch.org
DistroWatch provides news, popularity rankings, and other general information about various GNU/Linux distributions and other open source Unix-like operating systems.