Sent to you by Paul via Google Reader:
It’s no secret that we’ve got a freakish love of keyboard shortcuts around these parts. If you share the same love, then you'll quickly take to Mashable's cheat sheet of keyboard shortcuts for popular web apps like: Gmail, GReader, GCal, Google Maps, Google Video, Google Docs & Spreadsheets, Netvibes, Wikipedia, Blogger, Remember the Milk, Pandora, Yahoo! Mail, and WordPress. Ditch the mouse!