1) Buy Likes ( Good Way to get a Headstart and build upon it) 2) Facebook Ads ( Another good way, But Expensive) 3) Viral Apps ( Works the Best for me) 4) Age-old method of posting interesting content ( Does not work now-a-days due to competition)
You can also just sign in as your fanpage and like related fanpages and make comments on relevant fanpages as well. If you like a bunch someone is bound to like you back. IF you don't have any money to invest at the moment you should take matters into your own hands and just go around liking related pages.
Also, consider a Give-away Contest, my clients have all greatly increased their "Likes" with the implementation of a contest. Everyone likes Free Stuff and the buzz it will create as Friends see Friends entering to win a "x product", etc. Continue to properly communicate with new Fans during the contest and after the prize has been awarded and you will see your Likes continue to grow. Alot of times, the Give-away prize can be of your Product or Service Offering, A promotional product you were given from a vendor you utilize, or just some random prize. I highly recommend using a prize that is in relation to your business industry.
Go to fiverr and you can find services there were you can buy likes, and you can get multiple orders of likes to really increase your facebook fans!
You can get $50 ad coupons for free! set up an ad campaign to generate your first leads, if you have good content it will go viral from there!
- Post interesting topics. - Ask your friends to share and like your page. - Promote your page by making contest. - Interact with your friends and likers. - Comment on related fan pages.