A free (libre), open-source (GNU GPL), content management platform designed for group collaboration. Open Atrium is based on Drupal (running on Apache, with a MySQL database).
With KeepNote, you can store your class notes, TODO lists, research notes, journal entries, paper outlines, etc in a simple notebook hierarchy with rich-text formatting, images, and more. Using full-text search, you can retrieve any note for later reference.
As described by Lifehacker.com: "Mangle is a handy tool for formatting your Manga and comic collections for easy reading on your Kindle. It includes page sorting, downsampling, and auto rotation for fuss-free reading."
Tab Kit makes tabs more efficient for power users, allowing a wide variety of tweaks, all of which are optional, notably: - Group tabs, by domain or opener (parent) tab, manually or automatically - Multi-row tabs - Vertical tab tree (with splitter) - Sort tabs, by address, last loaded, last viewed, order of creation, origin or title - Control new tab position and close order - Easily duplicate tabs and copy/move them between windows by dragging - Scrollwheel tab switch - 'Mouse rocker' to go back/forward in history - Highlight unread tabs (and emphasise current tab) - Scrollbar instead of scroll arrows in over-long Bookmarks and All Tabs popups - Open Selected Links feature
Portable Ubuntu Remix is an Ubuntu system running as a Windows application. This system is built with the Colinux Kernel, Xming X server and Pulseaudio server for Windows. Portable Ubuntu Remix is a useful tool for when you need to use Ubuntu on an machine that has Windows as operating system.