Free PSN Code
Step 1: Sign up here
Step 2: Complete Offers and Surveys
In order to get credit for the offers you must create a new email address for each offer. Consider these emal addresses as spam accounts. If you use the same one over and over again you wont recieve credit for your offers after awhile.
Step 3: Redeem your Free Playstation Network Card Codes
Once you have earned at least $15 you can redeem a free playstation network card codes. Just click on spend points and then type in the search box for Playstation Network and a bunch of options will come up. Just follow the path and once you redeem them you, they will send you the codes within a few days.