http://red.i2p
I find the technology fascinating and really like the people and communities here. FMS, Sone, irc2p, Gemini, irc, etc. Just (mostly) happy, peaceful, cozy corners of the web with mostly chill people. When you’re talking to people anonymously and they’re still being nice, it’s far more special because you know it’s probably genuine (or an intelligence agent trying to befriend you to de-anonymize you).