I'd like to start with one my favorite survey sites, Survey Spot. You can cash out at $5.00 and they will send you a check, I have been with them since June and I have earned $40.00 thus far. They send Survey invitations directly to your email inbox.
Inbox Dollars, is another one of my favorites, this site is one that you take surveys and complete offers, they have a ton of useful free offers, and you get paid to read emails from them. One down side is you can't cash out until you are at $30.00, and it does take awhile for them to process and send the check but it is worth it.