Interesting.
http://bitcoin.org/ - official site
https://multibit.org/ - software to manage bitcoins. win/mac/linux
https://en.bitcoin.it/wiki/Mining_software. Use GPU/openCL, Asic, FPGA etc
https://en.bitcoin.it/wiki/Software - Bitcoin related software
https://en.bitcoin.it/wiki/Bitcoind - the first Bitcoin client ever
https://en.bitcoin.it/wiki/Mining_hardware_comparison
http://www.bitcoinmining.com/bitcoin-mining-software/
