Bitcoin Mining Distribution
Block: 159306
27 Dec 2011 

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

         Total Chain 100.00%           2,359

             Unknown  83.05%           1,959
           BTC Guild  12.99%             306
             Eligius   1.69%              40
           BitMinter   1.69%              39
         Yourbtc.net   0.56%              13