Online but invisible

http://oedb.org/library/college-basics/invisible-web

Python reference

http://rgruet.free.fr/PQR25/PQR2.5.html

Check your hardware

http://www.secguru.com/article/finding_hardware_details_of_your_linux_machine_without_using_screw_driver

MacBreak app listing

http://www.dasutin.com/?p=126

Gmail tip collection

http://g04.com/misc/GmailTipsComplete.html

Software ‘for starving students’

http://softwarefor.org/

Free icons

http://www.jmoisan.com/

LaTex cheat sheet

http://www.stdout.org/~winston/latex/

OSX apps

http://osx.hyperjeff.net/Apps/

OSX freeware

http://www.freewareosx.com/

PostgreSQL cheatsheet

http://www.alberton.info/postgresql_cheat_sheet.html

Portable OSX

http://osxportableapps.sourceforge.net/

Web designer’s toolbox

http://www.thepeoplestoolbox.com/web_designers/

All about dd

http://www.linuxquestions.org/questions/showthread.php?t=362506

Optimal bash

http://www-128.ibm.com/developerworks/aix/library/au-satbash.html

Good command-line habits

http://www-128.ibm.com/developerworks/aix/library/au-badunixhabits.html