1. Sign up at Twiends
2. Now click "Free Credits"
3. Enter all these codes in..-->
54MU1W 50 credits
AX2KRZ 50 credits
KE3YZ1 75 credits
98HJ1A 75 credits
4. Now you have about 300 credits. Twiends is like an auction site where you pick the group you want to get likes to and select how much you are willing to offer for 1 like. Now I for example want to get likes fast so I'll put 4 credits for 1 Like. To do that you just go to "Settings" and then "Facebook" and choose your group or page and select how many credits you are willing to offer per like.
5. Wait about 2 minutes and refresh your facebook page..