It's been suggested that Litecoin mining deserves it's own thread so as to not to derail the bitcoin mining thread. UPDATE: this thread is also for people using other Litecoin derivatives based on the scrypt algorithm eg. Feathercoin -LTC Litecoin - second only to BTC , faster than BTC, Smaller efficiency gap between GPUs and CPUs , ASIC-hostile -NVC NovaCoin - scrypt hashing[like LTC] , proof of stake [like PPC] , controversial start -FTC Feathercoin- LTC clone with 4x more coins. -DGC Digitalcoin- 20sec block rate, active. super fast version of LTC. -MNC Mincoin similar to BBQ, but very bad launch giving 10% of all coins to insiders. -CNC CHNcoin- similar to BBQ, announced on chinese forum first, very big hashrate. -BTB BitBar- scarce version of NovaCoin. low starting diff like FTC and CNC, but quick adjustment. Comparison of Litecoin mining pools Useful mining programs: You can download cgminer from here:- http://ck.kolivas.org/apps/cgminer/ You can download reaper here:- http://wiki.solidcoin.info/wiki/Reaper You can download cpuminer from here:- https://github.com/pooler/cpuminer/downloads /EDIT Since the OP the number of scrypt based alt-coins has exploded! No point listing them anymore. Here are some links for info on the popular alt-coins: Bitcointalk - List of Alt Coins. Coinchoose - profitability ratings. Coinwarz - profitability ratings and mining calculators. Coinmarketcap - market capitalization of many crypto coins.