Some of the offers include:
Signing up for survey sites (and then you earn from them for completing surveys)
Downloading free apps
Signing up for credit card offers (these offer $25+ for completing them)
Completing tasks - so far I've been paid $0.03 for checking shopping sites and verifying if a single product is promoted, if the brand is clear and if the product is clear (takes about a minute to complete for the $0.03)
Getting cash back for shopping at various stores, including Walmart
You can cash out once you reach $20 - which doesn't seem to take too long!
It's free to join - so start earning today!