Lucky Bitcoin - Well website through which you can earn a bitcoin reward after you have collected a certain number of Satoshi.
Prizes are cash/bitcoin prizes and merchandise.
Satoshi can accumulate in several ways:
By games that are added to the site.
By Gift Faucet from 500 Satoshi to 10000 Satoshi/hour.
By disseminating a unique link that you receive immediately after you register.
By free game that gives random Satoshi every day.
Earn 50% of your referral earnings.