First, here are the facts:
1. Facebook now has over half a billion registered members.
2. Millions of people log in to the site every single day making it one of the most visited websites in the world.
If the above facts don't make you run out and try to figure out how to tap this marketplace full of millions of people, then I don't know what will. It's no longer a question of whether you are going to use Facebook for business or not. In the early days of Facebook, this could be a valid question but today, you will be laughed at if you ask it. If you are a businessman, it doesn't matter if you're an online or offline businessman, using Facebook is not an option. It is a REQUIREMENT. If you don't use it, you're going to miss out on a lot of opportunities.