Forums
General Bitcoin Discussion
- BitcoinTalk Forum
- 1 Bitcoins Forum
- Bitcoin Forum Canada
- Bitcoin Profit Group Forum - Community For Making Profits With Bitcoin. Faucets, Trading, Investing, HYIP, Bitcoin Games, Bitcoin Casinos & More
- Bitcoin Stock Trader
- BitAnswers Question and Answer Community
- Bitcoin subreddit
- Bitcoin Google+ Community
- Bitcoin Google+ Community
- Google+ Page
- Bitcoin Trading Forum
- CoinBoards
- CoinChat - bitcoin integrated chat network with free BTC, gambling games, custom rooms, SSL encryption
- Facebook - Bitcoin
- Facebook - Bitcoin
- Facebook - Bitcoin Hong Kong
- Facebook - Bitcoin P2P Cryptocurrency
- Facebook - Bitcoin India
- Google groups - bitcoin-discussion
- Google groups - Bitcoin People
- Hubski - Bitcoin discussion
- Merchants Accepting Bitcoin Forum
- Bitcoin Center Korea
- Seoul Bitcoin
- Steam - Bitcoin
- Talkgold - Bitcoin Forum
Regular shows and podcasts
- Let's talk bitcoin - Adam B. Levine's podcast
- Plan B - Juniper Broadcasting weekly bitcoin show
- Bitcoin Channel - Bitcoin report and other videos/webcasts
Language/Region Specific
- Nairobi, Kenya and Africa Bitcoin community forum
- Canada's Bitcoin forum
- Farsi / Persian community
- Italian Bitcoin community forum
- New Zealand Facebook community
- Polish Bitcoin community forum
- BTCsec.com Bitcoin community forum (Russian)
- Bitcoin Center Korea
- Seoul Bitcoin
- Serbian Bitcoin community forum
- Slovenian bitcoin community
- Turkish Bitcoin community
- Danish Bitcoin community
Other
- Bitcoin StackExchange - Q&A site, currently in public beta
- Developer mailing list