Bitcoin Mining Distribution
Block: 157401
14 Dec 2011 

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

         Total Chain 100.00%           1,741

             Unknown  73.48%           1,279
           BTC Guild  15.91%             277
         Yourbtc.net   5.30%              92
             Eligius   4.55%              79
           BitMinter   0.76%              13