Community

Here are some nice active community resources for discussing Minecraft:
Please note that all of these are third-party and aren't hosted by us. We link them because they're great.

Official Resources

The Word of Notch - The one and only blog for Minecraft fans
@Notch - Follow notch's ramblings on twitter
Facebook - Join our community on Facebook
Get satisfaction - Give some feedback, make your voice heard.
Minecraft forums (Official forums, Notch reads these)
Minecraft wiki - Comprehensive community run Wiki

IRC

esper.net and other IRC networks aren't affiliated with Minecraft or Mojang, so their staff can't help with support for our game. Ask inside the channels (preferably #MineCraftHelp) for that.
#minecraft on irc.esper.net - Official IRC channel, run by Notch. (channel rules)
#MineCraftHelp on irc.esper.net - Help and support from community members.
#mcchatter on irc.esper.net - For general community chatter. (channel rules)

Forums and communities

MojangSupport - Unofficial support by Tom Costello
Minecraftopia - Great (and good looking!) resource
Minecraft Community on Steam - Over 1000 members!
Minecraft on Reddit
CraftHub
Minecraft on Mod DB
Minecrafting.ru (in Russian)
Minecraft forum (in Spanish)
Minecraft Workbench Texture packs, mods and skins
Mojang Community A fan-made community for all Mojang's games
Minecraft.fr A French Minecraft site, potato cubes!

Galleries:

The Minecraft Museum

Indie game development

Want to make your own game? Want to see what games other people are making?
TIGSource - Lots of talent! Minecraft originated here.
JavaGaming.org - Other java game developers. Neglected after Oracle took over.
Indie Games - The blog is awesome, and so is the podcast.
Ludum Dare - A 48 hour game development competition.

And some of my friends who are also making games:
Project Brutal dev blog - Hell of a nice guy, who I used to work with.
increpare games - One of the smartest people I've met.
DEVM-Games - Another talented coder I used to work with.
Wurm Online - I don't see Rolf as often as I'd like.
distractionware - One of my idols, made VVVVVV.
I probably forgot a bunch of people..

Are you one of the few who still haven't bought Minecraft?