Bitcoin Wiki:Community portal
Bitcoin Community Forums
IRC Chat
- General Bitcoin-related (webchat)
- Development and technical discussion (webchat)
- Over The Counter exchange (webchat)
- Live streaming quotes from MtGox and BCM (webchat)
- Live auctions (webchat)
- GPU mining related (webchat)
- RSS News related to Bitcoin (webchat)
There also are IRC channels for for-profit initiatives such as BitcoinD Investment Club and Witcoin.
Wiki Users
- List of Users registered on the Bitcoin wiki.
Events
Bitcoin Related Blogs
See Blogs category.
Maps
- The Bitcoin Map collaborative map
Bitcoin Project
- Bitcoin.org Official project site
- FiveGrinder.com Project planning and Activism
- Developer pages