That's easy. You can use Facebook marketing groups, although that is unreliable, time-consuming and there are no guarantees.You can use sites like Addmefast, Like4Like, Likenation and other such sites. Now that's reliable, and quick. If you want to get free points on those sites you can use iMacros.
Get them here: Social Exchange iMacros on DigesaleOf course, you can always buy Facebook likes for any status/post/photo/video cheaply,...
