http://booksbxfx6ciebutmfvorkotgfbwcwp24qpcxyuyen355z4eknxbzuqd.onion/dark/Laden_Kash_-_The_Dark_Web_%C2%B7_Exploration_Of_The_Deep_Web/THE_DARK_WEB_2.html
TorLinks - http://torlinkbgs6aabns.onion – another link farm of Tor links and .onion sites, has been around for a while and a good starting point. Hacking Forum - http://jv7aqstbyhd5hqki.onion – ignoring the hacking sections for the moment, it is a good site to use to know how to better protect yourself.