I've managed to get good traffic in less than 3 days from just over 100 likes have a look>>>> copy this into your browser >>>> www.facebook.com/diywebbusiness?sk=app_180116788710471
You may be able to get some initial traffic but that's about it. Most people that are on Facebook are there to browse. If people like you naturally, then yes its worth it. But I don't see the point in paying for likes.. Its just artificial business.
Like and dislike on facebook is not very much Important...but still If "like" user are active then diffidently helps you to increase your traffic.
Yes! A study by web marketing company shows that each facebook fan means 20 hits per day. So, if you have more fans then it means you will have more traffic.
if you can attract people with your good contents then i am sure you will get a 50% fans in your site.
Google and Bing are starting to corporate like/share on Facebook into their algorithm. So, the more the merrier i guess