Bitcoin Mining Distribution
Block: 157784
17 Dec 2011 

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

         Total Chain 100.00%           1,573

             Unknown  78.81%           1,239
           BTC Guild  11.02%             173
             Eligius   5.93%              93
           BitMinter   2.54%              39
         Yourbtc.net   1.69%              26