calibre has a modular device driver design that makes adding support for different e-reader devices easy. At the moment, it has support for the SONY PRS 500/505/700, Cybook Gen 3, Amazon Kindle (1 and 2) and the iPhone (with the stanza reader software). Syncing supports updating metadata on the device from metadata in the library and the creation of collections on the device based on the tags defined in the library view. If an book has more than one format available, calibre automatically chooses the best format when uploading to the device.

Synergy lets you easily share a single mouse and keyboard between multiple computers with different operating systems without special hardware. It's intended for users with multiple computers on their desk since each system uses its own display. This project is a maintenance fork created to implementing patches and bug fixes to synergy.

UNetbootin allows you to create bootable Live USB drives for a variety of Linux distributions from Windows or Linux, without requiring you to burn a CD. You can either let it download one of the many distributions supported out-of-the-box for you, or supply your own Linux .iso file if you've already downloaded one or your preferred distribution isn't on the list.

gOS 3.1 Gadgets instantly launches Google Gadgets for Linux on startup, introducing over 100,000 possible iGoogle and Google Gadgets to the desktop.

SynergyKM is a GUI wrapper around the synergy command line tool that lets you easily share a single mouse and keyboard between multiple computers with different operating systems without special hardware

Interesting in browser OS.

Back-up service. 2 gigs for free, unlimited for $5 a month.

"Mint is fresh, intelligent online money management. Not only is Mint free, it saves you money. While existing personal finance software packages require hours to set up, a passion for accounting (is that possible?) and hours of weekly maintenance, Mint is virtually effortless."

"Synergy lets you easily share a single mouse and keyboard between multiple computers with different operating systems, each with its own display, without special hardware. It's intended for users with multiple computers on their desk since each system uses its own monitor(s)."

A desktop app for FriendFeed, Twitter, Flickr, and soon others.

A Wired article talking the importance of Chrome.

Who remembers this screensaver?

Snazzier Google Talk Program

If you use windows then you have to get this. No "buts" about it.