I've recently started making money on various GPT (get paid to) sites. Last month I made over $600 just from filling out forms and doing free trials. Here are the sites I use:

These sites are free to join and require no CC to start making money:

*Recommended

Cash Duck* - this site is super-cute, easy to use and the site owner is always willing to help with any questions you may have.

Cash On Tap* - pays 3x/month on the 10th, 20th and 30th of every month.

Inbox Dollars* - pays you $5 just for signing up!

Send Earnings* - pays you $3 just for signing up!

Deal Barbie* -  tons of free surveys you can take for quick cash.

Rock Hard Cash  -  lots of offers to do.
 
Manderine's Money - new site

Fusion Cash - lots of good feedback about this site all over the internet.

This site requires CC and completion of (1) paid offer:

Order Cash 4 Free

Check out my blog BeccaGirl's Money for more money-making ideas, money-saving tips and more!