Case Study: Facebook Marketing

Last week we presented in a group a Case Study about Facebook Marketing. We had to work out how companies use Facebook for their self-marketing. 
The result was that there are three different ways of using Facebook for self-marketing: Pages, Ads and Groups.
They have their pros and cons but I think the most effective way to market on Facebook is to use a page. In a page the companies can advertise and the customers can also give their opinion about a product or the latest news of the company. So the companies know always what the customers expect and so they can focus on that. This is the key of a good marketing strategy.