facebook page can be very useful and i would like to highlight few advantages of facebook page. When you create a facebook page, you get the privilege to add like button to your webpage and when visitors click like on those buttons, the posts get shared automatically on their wall and therefore the exposure to the post increases and this drives in more traffic. Do you think there are any other advantages with Facebook page? If yes, then please do share it here.
There is a myriad of threads on the advantages of Facebook in this forum. I suggest you do a search and find your answers in one of them.