SmartyPig

From Them:

SmartyPig is for people who want to save for specific goals. Whether it’s a family vacation, the latest electronic gadget, a wedding or a down payment on a house, SmartyPig’s unique system can help you get there. Just tell us what you’re saving for, how much you want to save and when you want to reach your goal, and we’ll suggest an automatic monthly deposit you’ll make from your existing checking or saving account until you reach your goal.

SmartyPig functions as a social network where, if you make your goal public, friends and family can provide financial support. You can also add your personalized SmartyPig widget to your Facebook or MySpace page, blog or Website. Not to mention, you can start your own SmartyPig Friends Network.