All you have to do, is click the links the site give you and complete the offer, if you are U.S. resident you'll win 100$, 200$, 300$ depends how many offers you do.
The site has a game too, in the game you are a soldier and as strong as you get, you'll have the power to steal money from other users
Not real money, but swatcash=virtual money, that you can convert to real money
Is an exellent site, but for U.S. residents only :S
Because there are only a few offers for other countries
Important: If you don't want your account to be canceled in every site your in, be attention for the following measures:
1- Don't create more than one account, if you want to create another, first delete the old one.
2- Open your account only by your computer, because of your "ip". If you do not, the risk is your account being deleted.
3- Don't enter any site from public places (WiFi).
Send an email to the Admin of the site if you want to do any of this three situations