There is no short cut way. You can buy likes but they will not be helpful in long run. So try it manually, update attractive staffs.
If you are really asking for a best way to increase in facebook likes than it is posting quality & user liked content. Quality thing personally do attract me in liking others content, and its normal act about facebook activity.
Just write good content often - pictures, statuses, videos. If your page is new it will need boosting - i am using the site in my footer... its free also
I usually start with sending the page to all my friends and having a few close friends do the same. Then start posting conversational topics. When the likes slowly start coming in I pay. Its kinda cheap to get facebook likes. Just make sure they are REAL People. Some places use bulk accounts with no one actually owning the account.
yeah, problem with addmefast is that after a few days you will see your likes dissapearing ... slowly but surely and over that i think majority of likes are not real people's accounts but bots or tools that just add whatever they "see" on the page. Better try fiverr... at least you get 1k likes in 24 h (even though not real)
just promote your page its the easiest way to get more likes or tell ur frnds to send emails to their frnds You-YOUR FRIEND-his friends - and soo on
i think you can also vastly increase your fanpage likes by using plugins made by programmers... I think there may be some within Digital point...
There are few website provide free likes in the exchange of the likes in those site there is a popular one and my favorite..addmefast.com/my_sites/add_success.html others are www.lenkaat.com/facebook.php www.hitswarms.com/index.php