New Bitcoin Mixer - http://btcoinmixer.com/
The bitcoin network might be anonymous in terms of single-handedly revealing your ip address, but the transaction history is recorded in the block chain and is publically available, which makes your anonymity very vulnerable. Once the interested parties, be it authorities or just interested researchers (http://anonymity-in-bitcoin.blogspot.co ... ymous.html) have acquired any one of your addresses or transactions, they could easily track your money around the network.