Amazon Mechanical Turks -I have been a turker for a couple of
months now and it is my absolute go to site for making a few extra dollars.
I let my earning pile up on this site and then I transfer them to my Amazon Payments account and then to my personal bank account. The tasks are easy and there are a lot of task always available. (Some you have to qualify for and some you don't)
Inbox Dollars - Here is another one of my go to sites. You can earn some extra cash by just reading emails, taking short surveys, using their search engine, or watching videos. Compensation is via check by mail within 30 days. The only downside is that you have to reach $30 to cash out and get your check.
Swagbucks - I am not a member of swagbucks but upon m research I found it to be very similar to Inbox dollars. You earn your compensation by using their search engines, playing games, and shopping. You can redeem swagbucks for retail gift cards, Amazon or Paypal cash, etc.