The GeekStuff is packed with hints and trix.
GHacks has a lot of trix at hand.
Bash One Liners is a fantastic place for bash trix in just one line.
Information at your fingertips using man
Here you can find a small utility for using the Logitech Unifying products on your favorite Linux.
How to switch off the touchpad while typing.
Fix a MatLab issue when it won't start from the program launcher.
Install Digilent Waveforms on your Fedora