how can i contect with any brand or company for advertisment of then products?

[capricorn]

advertisment on facebook page can i earn and if i can how can i contect with them

[Jake]

Realistically companies would only want to deal with an established advertising company with a proven traffic record, or they would advertise directly on Facebook. Over 90% of the revenue for Google Adwords comes from companies that spend over $100,000 a month there.

There are plenty of guides for making money from Facebook advertising, many discuss affiliate marketing which is specifically setup to allow small time operators receive a commission of perhaps 15% for sending a buying customer. More advanced marketers can be approved to do CPA marketing in which one gets a commission for just sending a lead, someone taking an action short of actually getting out their credit card, like filling in a loan application.

Here's one of many affiliate program directories:
http://www.affiliateseeking.com/

Many internet marketing rookies hang out at warriorforum.com where you can find inexpensive member authored guides (some decent) in the WSO section.