Bitcoin Links

Chain

Block Chain API for Developers

Cryptothrift

Bitcoin and Litecoin marketplace and auction site

Jobs4Bitcoins on reddit

A place to offer your talents and skills in exchange for the fastest growing currency in the world.

Satoshi Nakamoto Institute

I've been working on a new electronic cash system that's fully peer-to-peer, with no trusted third party. - Satoshi Nakamoto, 2008

Map of Coins

Visualized history of cryptocurrencies from bitcoin launch up to present day: over 200 altcoins on one map.

MintPal

Fast, Efficient and Secure Cryptocurrency Exchange Featuring Bitcoin

Crypto Rush

Exchange InfiniteCoin for other cryptocurrencies

ICBIT

Bitcoin Derivatives Market and Exchange