Mindmaps
Compendium — http://compendium.open.ac.uk/institute/community/showcase.htm
Freemind — http://freemind.sourceforge.net/wiki/index.php/Main_Page
Lightweight time tracker — http://lwtt.aiken.cz/section/documentation
PDF reader — http://www.foxitsoftware.com/downloads/index.php
Hypervideo Converter — http://gtk-apps.org/content/show.php/Hyper+Video+Converter?content=88970