Setup Ruby On Rails in Ubuntu 12.04 (Precise Pangolin) – step by step instruction for beginners, or just use the Installer Script.
Install Precise Tweak (New Ubuntu Tweak) in Ubuntu 12.04 from PPA
How to Install Ubuntu Tweak or Precise Tweak from stable PPA, on Ubuntu 12.04 LTS (Precise Pangolin).
How to Tweak Ubuntu 12.04 LTS
Want to Tweak/Customize Ubuntu 12.04 LTS (precise pangolin) settings ? Here are some cool Apps that might help you.
Alternative Desktop Environments for Ubuntu 12.04 LTS
Some Alternative Window Managers / Desktops for Ubuntu 12.04 LTS / Unity Desktop.
Keyboard Shortcuts for Ubuntu 12.04 LTS
Most Commonly Used Keyboard shortcuts for Ubuntu 12.04 LTS (Precise Pangolin).