vanitygen allows you to specify part of your bitcoin address.
Vanitygen allows you to specify part of your bitcoin address. It does this by repeatedly generating new addresses, and throwing away the ones that don't match. It has a companion program called
oclvanitygen which achieves a massive speedup by using your graphics card instead of your CPU.
vanitygenminer connects to various vanity address pools and earns bitcoins by generating addresses and claiming bounties for them.