tools
browsers
How about web browsers that actually work, without exposing your computer to viruses and exploits? (^-^)// These excellent browsers were built by hackers (hackers = friends, remember?) for everyone's benefit. They are the best.
p2p networks
The easiest way to share files. Peer-to-Peer networks are where it's at—and where you want to be if you don't want to miss out on the greatest, global cooperative movement in history. Teach your children to share. Selfish people suck.
RSS readers
Unfortunately, 51% of the U.S. seems to get its news from essentially the same source. (-_- ) Get some perspective on world events. Access many news sources from all over the world for free. I'll even throw in my favorite 30 RSS news feeds.