share your Facebook page all friends & colleagues...Ask your friends they also shared in own friends circle.The second way is paid like..you have to pay your clients to increase facebook likes...
The best way to get facebook page, I know is put your FB page's link/banner on your site. So, if your sites visitor will find your site useful they will probably will add like to your page. Some people add like to get updates of your site on their facebook account that's why you also need to get your facebook page updated atleast once a week with some useful stuff. Hope this makes sense.
you can either buy facebook likes and if not then even you can find many users on gtalk that do mutual likes exchange
We offer facebook like services. Consider checking out the link in my signature (the second one) for some of the cheapest facebook likes online.
I don't recommend that you buy facebook likes. Generally those are non quality users. The best way I think is to put your facebook fanpage on your site on an very good position.
Have an interesting page and advertise it to make it known. Get like buttons on the website. Organize a contest - that's(almost) free social media!
No problem. The great thing about contests is that you'll get both twitter followers, facebook likes and whatever social stuff you want. For example, "Tweet this message and like us on facebook to enter a contest to win <product of choice>.". It's great.