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A simple URL edit can open attached Office docs from Gmail in a sleek viewer, rather than the sometimes funky HTML option.

Firefox with Greasemonkey: The Gmail Unread Message Count in Favicon Greasemonkey user script displays your unread message count on the Gmail site favicon.

Linux only: The latest release of Google Gadgets for Linux offers speed and memory performance enhancements and a number of bug fixes, but, most importantly, support for newer gadgets like Gmail and Google Docs.

Google has taken a more aggressive approach to moving users away from Internet Explorer, recommending that Gmail users install Firefox or Chrome if they want to see Gmail run "an average of twice as fast."

Windows/Mac/Linux (Adobe AIR): GMDesk is a single-window frame that can hot-switch between Gmail, Google Calendar, Google Docs, and other G-apps, but it could use a few tweaks to make it truly convenient.

Windows/Mac/Linux (Adobe AIR): GMDesk is a single-window frame that can hot-switch between Gmail, Google Calendar, Google Docs, and other G-apps, but it could use a few tweaks to make it truly convenient.

Gmail Labs adds yet another new feature to the roster: the ability to turn a message into a Google Document in one click.

Around my house, hacked email accounts were something that happened to other people—relatives with weak passwords, generally, or Dateline story subjects. Until yesterday, when my wife emailed everybody about "gps ,TV LCD,cell phones ..."

Maybe it was the recent roll-out of Gmail's task manager or a huge full moon, but Google Apps developers have finally opened up "Labs" features to domain-based Google Mail users.

Next time you receive a PDF file attachment in Gmail, hit the View link next to it. Instead of the hardly-ever-looked-good HTML view, you'll get Google Docs' full-on PDF viewer right in your browser, with thumbnails for navigating the PDF's multiple page the way your desktop PDF viewer works. Here's what it looks like: