You Can Syncs Photos of Facebook Friends with Contacts in Microsoft Outlook:

OutSync is a free Windows application that syncs photos of your Facebook friends with matching contacts in Microsoft Outlook. It allows you to select which contacts are updated. So you can update all contacts at once or just a few at a time.

You Can Get Facebook on Your Desktop

Seesmic Desktop, Facebooker, Xobni, Facebook Sidebar Gadget, Scrapboy and Facebook AIR application are desktop applications that allows you interact with your stream just as you would on Facebook, but without any browser.

You Can also Create Quiz on Facebook:

LOLapps provide quiz creator that can be employed to conjure up these popular personality quizzes that are so widespread in Facebook.

You Can Display Your Facebook Status On Your Wordpress Blog:

Want to display your Facebook status updates on your Wordpress blog? There is a plugin that does exactly that. StatusPress lets you display your status updates to a widget on your Wordpress blog.

You Can Add Cool Magic Circles on Facebook:

This is really simple. This cool magic circles appearing on your page is just one of the many secret tricks you’ll find in Facebook. You might want to give this a try.

Here’s how:
Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Enter key then press up & down.

Now, just in case it doesn’t work on your first try, try reloading/refresh your page again by pressing F5 and repeat the process.

You Can Upload Photos From Picasa To Facebook:

You can Upload photos to your Facebook account directly from google Picasa using the Picasa app for Facebook. You can also upload the Picasa captions and resize your photos before uploading them on to the Facebook.

You Can Hide Your Online Status From Selected Friends:

So you want to use Facebook chat but don’t want some people/friends to see your online status? Simply open up the Facebook Chat and click Friends List. Start creating a new list called BlockList to block the persons.

Once the list is created, add those friends/people to the list that you want to appear offline. When the list is complete, take your mouse to the little green icon adjacent to the list and click Go Offline. Bravo! You will now appear offline to the BlockList friends.