BTC Guild is a Bitcoin Mining Pool, and one of the oldest remaining Bitcoin pools. BTC Guild tries to provide a simple but clean interface, full of all the statistics that a savvy miner would want to see.
BTC Guild is a mining pool that uses PPLNS (Pay per Last N Shares) with a 2% fee. As part of this fee, miners earn Bitcoins, Namecoins, and the transaction fees for the block, reducing the effective fee to approximately 1%.