Okay, so Facebook has officially become the #1 social networking site. But that doesn't mean there are things you don't know about it. And i'm going to be listing some right now.
 1. Did you ever notice those annoying ads on the right side of your homepage and profile? If you did and you think they are really annoying there is a way to get rid of them. 
Here is a link to get rid of them.http://www.techvivid.com/2011/01/how-to-remove-block-facebook-ads-in-firefox-chrome-ie-opera/ 

2. Have you heard about the Facebook Photo/ Banner hack? This is one of the most easy things you can do to make your profile look good. All you have to do is go to Schweppes Application on Facebook. Once you get there you realize that it is already set up and all you have to do is supply the picture.
3. If you've ever wanted a dislike button for a status, you can now have it. You just have to go to the Magic Updates application. Once there you can write your status and make any extra button to click on for that status.
4. Another thing you can do is get Facebook on your desktop. One program that lets you do this is Facebooker. Just look it up on google and it should only take you a couple minutes.