Simply put, a Facebook tab is a separate page (commonly referred to as a “tab”) that can display a variety of different things within your Facebook fan page. For example, your Wall is considered a tab on your Facebook page--as are the “Info”, “Photos”, “Discussions”, and other links found directly underneath the profile image on your Facebook fan page. Businesses tend to use custom Facebook tabs to welcome new visitors, offer discounts or coupons, showcase videos or other content, and more.
Creating a Facebook fan page is easy. Creating a memorable Facebook page--a destination on Facebook, is challenging. Just like anything in life, things that are different tend to be far more memorable.