I know having a Facebook fan page with a lot of likes is probably one of the best traffic sources, because you can simply post a link to your website or blog and have a lot of people (targeted) viewing it. Besides using Facebook ads to get fans on your page, what are some good ways of getting people liking your page?
With Facebook’s new Graph Search it’s really easy to find out what interests your target community, and post relevant content to increase Facebook likes.So post according to that or you can also buy likes from sites like SEOclerks, listingdock etc.
You can do a lot, go like other pages and posts, comment there, leave your mark, people will follow it back to you. Another good thing you can do is join some groups in your niche and when you make a post in your page share that post on those groups, the likes and reach will skyrocket, I wrote a detailed post on that, you can read it here