Harry Potter Guild of Gaia. I've been a member since 2005 and the guild is nearing five years. After five years (and HP book fever long gone) the guild still lives. Why/how? Because it's wayy more than just Harry Potter nerds (for the record: I am not a HP nerd). It's a highly organized discussion, roleplay, communicating guild. A lot of my newest Gaia buddies are from that guild.
Soooo if you're looking for a place to have literate discussions with mature people, or just whatever stop by HPGoG today!
[That was me advertising the guild...I kinda have to do that sometimes]
I spend 85% of my Gaia time in that guild or working on stuff for that guild. Lots of hard work, time, and effort. Luckily I (and everyone else who spent a lot of time, effort, etc) know that it wasn't fruitless. Everyday we get new members and I feel like it's always something to do...even when it's not. Remember the guild is not just about Harry Potter even though it's Harry Potter based...(confused, no?)
Soooo if you're wondering what I do with my time...well that's pretty much it.