Track down your stolen computer

Just install Prey: http://preyproject.com/

How to replace the track of a HD MP4 file

This is not a linux program, but it was damn helpful

Use
http://yamb.unite-video.com/download.html
http://kurtnoise.free.fr/Yamb/installer/

YAMB, which is a open source code program.

And then do the audio processing in AUDACITY

Utilizando ultrasurf con Linux

En este artículo:

http://thoughtyblog.wordpress.com/2009/10/31/how-to-use-ultrasurf-with-firefox/

se enseña como utilizar ULTRASURF con Linux

ULTRASURF es un programa que permite saltarse un bloqueo por proxies...

PDF annotation tool

http://www.docu-track.com/product/pdf-xchange-viewer

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wine