Macintosh

"Sahana is a Free and Open Source Disaster Management system. It is a web based collaboration tool that addresses the common coordination problems during a disaster from finding missing people, managing aid, managing volunteers, tracking camps effectively between Government groups, the civil society (NGOs) and the victims themselves."

They're labelled for Windows 7, but these wallpapers will work with just about any operating system.

Vector graphics editors don't start and end with Adobe Illustrator. Here's a list of 20 Vector Graphics Editors Reviewed.

"Ever wanted to master the keyboard shortcuts and get more productive on the web? Here is everything you need – 7 quick cheat sheets for some of the most widely used tools on the web. Download, print and stick them somewhere near your desk."

"The following fifty proprietary programs are listed in no particular order within broad categories along with their open source alternatives. In some cases you could probably write your own book on frustrations with the proprietary programs shown here. In other cases, you’ll discover that the open source alternative isn’t quite up to snuff yet. And, in other cases still, you’ll learn that some proprietary programs are real gems, but that the open source advocate can replace those gems with equally shiny objects from the open source repertoire."

Heh.

"JScreenFix is a software solution that can fix stuck pixels, reduce screen burn-in and improve the quality of images displayed on a screen."

Mashable brings us another massive list of resources: FIREFOX GOD: 300+ Tools and Resources For Firefox.

Security-Hacks.com lists "10 anti-phishing Firefox extensions that can be used to mitigate the risk of being a victim of a phishing attack".

"Scratch is a new programming language that makes it easy to create your own interactive stories, animations, games, music, and art—and share your creations on the web." The main Scratch site is straining under the load after a BBC article about the program, so patience will be a must for the next few days.

Martin Rundkvist teaches us how to suppress the error message "Your last Firefox session closed unexpectedly" that Firefox sometimes gives when launched.

Free PC Games: "Who says you have to pay to get good games? Here's a list of over 200 free PC games for your enjoyment! Many work on Linux and OS X, too."

Open Source Alternative "provide[s] easy access to high quality open source alternatives to well-known commercial products. And remember that open source software is also a freeware alternative."

Gina Trapani teaches us how to choose (and remember) great passwords.

Thanassis offers his list of 27 of the most useful Firefox extensions.