Bitcoin Mining Distribution
Block: 157554
15 Dec 2011 

Hashrate (in Difficulty units per second; 1 Difficulty unit == 4 GiHash):

         Total Chain 100.00%           1,996

             Unknown  81.70%           1,631
           BTC Guild  11.76%             234
         Yourbtc.net   3.27%              65
             Eligius   2.61%              52
           BitMinter   0.65%              13