UKpostbox.com

"The UK's premier, scan my post - post scanning, invoice scanning, mail sending, parcel forwarding with UK street address and UK Post box services

Easily manage your postal mail online with UK PostBox. Your mail is received by us and managed online by you. We've brought snail mail into the 21st century powered by iPostalMail. We receive your post and notify you, including showing you a scan or photograph of your mail. You then tell us what you'd like us to do with it."

http://www.ukpostbox.com/