Xpenser
Xpenser provides an easy way to track your business expenses. Designed to work within your normal workflow, you can email, sms, Tweet, IM, etc., your expenses w/o logging on to their system. You can even photograph your receipt with your iphone and send it off to Xpenser the way you see fit. Cool. Xpenser is run by Parand Darugar and is currently bootstrapped.