BEST Free or Open Source

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OpenStreetMap is an open source mapping system that was created by over 250,000+ users and as such the map data is free to use. As the maps are open and rely on users creating and updating them there will be a chance that some of the maps are incorrect or missing all together, especially in more rural areas. The good news is you can add & improve the map yourself by getting involved at OpenStreetMap, using one of the freely available map editors or simply use Navfree's inbuilt map report tool to send mapping errors!

Navfree Latest Satellite Navigation Software for iPhone, iPad and Android

http://www.navmii.com/navfree/?country=GB
Software Sources

Utilities

Productivity

MultiMedia

eBook Readers

Desktop Web Editors

Webbrowsers

Mind Mapping

InkScape

Firefox plugin that allows selections of webpages to be dumped using the "Quick Note" zim plugin.

Zim Desktop Wiki

http://zim-wiki.org/extras.html
MegaZine3 is a Flash driven pageflip engine that recreates the look and feel of actual books or magazines on the screen. http://www.megazine3.de/home.html

MegaZine3 - Open Source PageFlip

http://getgreenshot.org/ Create complete or partial screenshots quickly. Easily annotate, highlight or obfuscate parts of the screenshot.

Greenshot - a free and open source screenshot tool for productivity

Excellent screen capture and anotation tool - FREE fast and easy - For full feature capture software see Snagit by drewc Mar 18

http://camstudio.org/ CamStudio is able to record all screen and audio activity on your computer and create industry-standard AVI video files and using its built-in SWF Producer can turn those AVIs into lean, mean, bandwidth-friendly Streaming Flash videos (SWFs) “I am a self-employed consultant that works in the public safety community (cops, fire, ems, dispatch etc).

CamStudio - Free Screen Recording Software

Foxit PDF Reader

Foxit PhantomPDF Standard http://www.foxitsoftware.com/downloads/index.php

7-Zip

http://www.7-zip.org/ 7-Zip is open source software.
https://addons.mozilla.org/en-US/thunderbird/addon/lightning/

Lightning :: Add-ons for Thunderbird

Be sure to read the release notes (pointed to by the Homepage link here) before installing, it contains valuable information about the current release and also a few known issues.

Good Calendar add on for Thunderbird will link to Google Calendar by drewc Mar 13

https://www.virtualbox.org/ Oracle today released VirtualBox 4.1.16, a maintenance release of VirtualBox 4.1 which improves stability and fixes regressions.

VirtualBox