1. See what your profile looks like to other people by Previewing Your Profile.
Ever wonder what your Profile looks like to one of your friends? Their view won't always be the same as yours depending on various privacy settings. To see what they see, go to your Account menu in the top right hand corner of any page. Choose Privacy Settings -> View Settings (under Connecting on Facebook) ->Preview My Profile (on the right). It will show you what your Profile looks like to most people on Facebook and also let you enter a friend's name to see how it appears to them.
2. Facebook Groups let you easily share and communicate with smaller sets of friends.
If you've accumulated hundreds of friends on Facebook and want an easier way to communicate with a few really close friends, try setting up aGroup. From your home page, click "Create Group" in the left hand menu. Choose a group name and instantly add the friends you want in it. You can also choose what level of privacy you want for the Group: Open, Closed, or Secret. If you create a Closed or Secret Group, only members will be able to see what is posted. Start one today for your family, book club, soccer team, or study group.
3. If you're a fan of mentioning friends in your status, you'll love Status Tagging.
Whenever you want to mention someone on Facebook, you can just type the @ symbol, start typing their name, and then choose them from the dropdown menu. They'll get an email notification that they've been tagged, similarly to how photo tags work. It's a quick and easy way to let your friends know to join the conversation.
4. Friendship Pages are the new Wall-to-Wall.
Do you keep letters, prints of favorite pictures or other mementos? If so, you should probably check out Friendship Pages that let you see a history of your entire friendship on Facebook, including photos, Wall posts, events you've attended together and much more. Whenever you're visiting a friend's Profile, click on "See Friendship" on the right hand side. This will take you a special page dedicated just to the two of you. Explore other friendship by typing in other friends names on the right hand side.
5. Find your friend's numbers fast using Facebook's Phonebook.
Who memorizes phone numbers anymore? If you've ever lost or replaced your phone, you probably lost all of your contacts and perhaps gone through the pain of asking friends to send them to you again. But maybe they've already put their phone numbers on Facebook. Check and see by going to "Friends" on the left hand side of your home page. From there, click, "Edit Friends" and then on the left hand side, you'll see "Phonebook" which will take you to a list of all of your friends who have listed their numbers on their Profiles.