BillMonk

BillMonk is a free service that makes it easy to track borrowing money and stuff between friends, using a web browser or your cell phone. It launched in January 2006. With this program you can Track Money (Roommates - split rent, utilities; Friends - track casual debts; Restaurants - pay now, settle up later) and Track Stuff (Library - record what you own; Borrowing - remember who has your books and movies; Community - browse your friends' collections).

Requirements:

Webware