Is a cool applicationthat can be used on facebook and idependently to send e-cards to your firends, The ability to draw custom pics for your friends or if you slightly more lazy send e-cards designed by other users to your friends, its definitly wortha look and a vast improvement on the 'Graffiti' app, with additional features suchas saving, a much more user friendly colour pallette, the ability to bookmark colours and much more.

http://apps.facebook.com/pencake
http://www.pencake.com/
http://blog.pencake.com

Penguin News, same thing, just now on youtube.

And some pics using the Graffiti application on facebook.

Quite possibly the No.1 social networking site around at the moment recently gone through a massive overhaul apperance wise which is taking some getting use to.

Negatives
So many applications you can add to your profile, many annoying spammy ones, that give spammy invites to everyone on your friends list and there spammy aps do the same to you :(and quite frequently ones that dont work like they say that they will.

Positives
Everyone youve ever met is probaly on there including your grandma.
The every day stuff, checking your message and chating to your friends it easy to do and easy to find.
Crunchy's on there, go visit him and become a fan.