The best way to start is with creating a Page for your business. Those who have created a personal Facebook profile will find the process pretty simple, but the step-by-step form pages will also make creating a Business Page painless for those new to Facebook.
You will need to have basic business information ready before creating the page —decide on a page name and find any images you want to upload. Remember that your company logo is best for the profile picture. When you create the page you will need to include a description of your Web site, product, brand or company.
With this information handy, simply choose one of three categories for your business: Local Business (and the industry), Brand or Product, or choose if this will be a Page for a public band, artist or other public figure. Once you select a category you are required to enter the business name. When you submit this information you will then see a Business Page that shares some resemblance to personal profile pages on Facebook.
On a side note, Facebook completed implementing changes to the Facebook business pages that will make the page look exactly user profiles.
How to Create a Facebook Page for Your Business
By Vangie Beal, March 12, 2009