34. Pixel City
Fly through a computer-generated city at night. Check out the YouTube video for an overview of how it works and how it looks. Operating System: Windows
This is a collection of psychedelic screensavers with a number of different graphic styles. While some, like Hyperspace, require some pretty powerful hardware, most will run on any average system. Operating System: Windows
For Lego lovers, this screensaver builds a tower out of the popular building blocks. Operating System: Windows
This screensaver features quotes from wikiquote.org. You choose a topic and a language, then get ready to be inspired. Operating System: Windows.
Ditto is sort of like your regular cut-and-paste clipboard on steroids. It lets you save multiple items on your clipboard for use later and even share clipboard items across multiple computers. Operating System: Windows
This site offers native Windows ports of lots of different open-source apps offered under the GNU license. There are dozens of apps, tools, and libraries available, but many of them fall under the "utilities" category, which is why we put it here on our list. Operating System: Windows
Need to turn off, turn on, or restart your computer at a later time? This app lets you schedule all those functions so they happen automatically and adds several other features as well. Operating System: Windows, Linux
41. Startup Manager
Does it take way too long to start up your PC? Startup Manager gives you control over which applications and processes automatically begin when you power up your system. Operating System: Windows
42. Synergy Have more than one PC on your desk? This application lets you use the same keyboard and mouse to operate both, even if the computers use different operating systems. Operating System: Windows, Linux, Unix, OS X.
43. Google Wallpaper
Type in a keyword, and this app will find related photos through Google and pick one at random to be your new desktop wallpaper. After a user-determined period of time, it refreshes with a new random photo (and yes, safe search is an option). Operating System: Windows
44. izulu Tired of being stuck in a cubicle all day with no view of the outside world? Izulu updates your desktop wallpaper based on current time and weather conditions so that you'll now what's happening outside even if you don't have a window. Operating System: Linux
Wally is a wallpaper changer that loads photos from Flickr, Yahoo!, Panoramio, and other photos services, as well as your local hard drive. It lets you select how often the pictures change, where they appear on the screen, and more. Operating System: Windows, Linux, OS X
Enlightenment is both a windows manager and a suite of libraries for creating your own windows manager. Although it's primarily aimed at desktops, it can also be used on smartphones and other mobile devices. Operating System: Linux.
47. Fluxbox Key features for this Linux windows manager include tabbing, grouping, keycommands, Chainable Keygrabber, fully editable menus, and more. It's also light on system resources for very fast performance. Operating System: Linux.
This window manager focuses on "speed, simplicity, and not getting in the user's way." It supports multiple themes and multiple languages. Operating System: Linux, OS X
VirtuaWin takes the "virtual desktop" concept that is familiar to Unix users and applies it to the Windows environment. It allows users to save up to nine virtual desktops, each with its own set of open applications and other files. Operating System: Windows
With this tool, you can save multiple desktops, each with multiple open applications, and switch between them. It's a great tool for multi-taskers. Operating System: Windows