Bitcoin Mining Distribution
Block: 158520
22 Dec 2011 

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

         Total Chain 100.00%           1,988

             Unknown  81.88%           1,628
           BTC Guild   9.40%             186
             Eligius   6.71%             133
         Yourbtc.net   1.34%              26
           BitMinter   0.67%              13