Free Software Foundation’s pages and campaigns:

• The Free Software Foundation (FSF)
  http://www.fsf.org/
• The GNU Operating System
  http://www.gnu.org/
• Defective by Design | The Campaign to eliminate DRM
  http://www.defectivebydesign.org/
• End Software Patents | The Campaign to abolish software patents
  http://www.endsoftpatents.org/

Great free software that I use almost every day:

• Eclipse IDE
  http://www.eclipse.org/
• Mozilla Firefox Web Browser
  http://www.mozilla.org/firefox/
• Mozilla Thunderbird Email Application
  http://www.mozilla.org/thunderbird/

More great free software:

• Blender – free open source 3D content creation suite
  http://www.blender.org/
• GIMP – The GNU Image Manipulation Program
  http://www.gimp.org/
• Inkscape – Vector Graphics Editor
  http://www.inkscape.org/
• MyPaint – free open-source graphics application for digital painters
  http://mypaint.intilinux.com/
• Synfig Studio – free open source animation software
  http://www.synfig.org/
• OpenShot – free and open source video editor for Linux
  http://www.openshot.org/
• PiTiVi – free and open source video editor for Linux
  http://www.pitivi.org/
• Hugin – Panorama photo stitcher
  http://hugin.sourceforge.net/

Linux distributions I’ve tried:

• Linux Mint (currently using)
  http://www.linuxmint.com/
• Ubuntu (currently using)
  http://www.ubuntu.com/
• Debian
  http://www.debian.org/
• Fedora
  http://www.fedoraproject.org/
• Yellow Dog Linux
  http://www.yellowdoglinux.com/
• Parted Magic: a system rescue distribution
  http://www.partedmagic.com/
• SystemRescueCd: a system rescue distribution
  http://www.sysresccd.org/

Some cool projects I would like to look at one day:

• LEGO MINDSTORMS
  http://mindstorms.lego.com/
• Arduino open source electronics prototyping
  http://www.arduino.cc/