Originally ported from Google Reader: Mac OS X Snow Leopard and Google Reader: Mac OS X Snow Leopard + Delicious. and now available as a Google Chrome extension!
Mac OS X Snow Leopard + Delicious by M.Mike Kondo http://userstyles.org/users/20999.
Vidal van Bergen repackaged it for Safari 5, updated some parts that were no longer working, and made a few of adjustments.