Increase Facebook Likes?

First, DO NOT buy tons of likes from fiverr, microworker sites or bots. This can only harm your page. If you want some fans for credibility, use something like addmefast.com, since its free and the chance real humans are linking is bigger. Still those are not very quality likes, so you don't need many of them.

You want to attract people, who will be interested in what you post. That's why when you hunt for likes, always be with the thought of creating VALUE. Think of how useful the information is for your target audience. Here are some tips for creating valuable and genuine facebook likes:
- Start with you content, post something interesting that is worth reading and sharing by your visitors
- You can create facebook like gates on your site to open valuable content (google it and you will see how those gates are made)
- Use eye-cathing images
- Keep it short 100-150 words and be relevant to your audeince
- Include a call to action, ask your fans to like and share with their friends and its more likely they will do it
- Be educational - people like sharing how-to guides, tips and tricks or try to break some myths, you can include that in a form of lists or bullet points, people love that
- Do not spam, post 3-5 times a week and if people like what you post, post more
- Like other fan pages related to your niche and autograph them in your posts with @ like you would tag your friends.

Hope this helps. Good luck with increasing your fans.