How to Add Repositories to Ubuntu 12.04 via the GUI / Graphical method. In this Tutorial video we avoid using the terminal to add Repositories / PPA's (Personal Package Archives) via the Ubuntu Software Centre. This is the same as using sudo add-apt-repository, apt-get update, apt-get install. A repository can give you new or updated software beyond what was provided by Canonical in Ubuntu. If you're following this video from one of my other vids, take a note of the repository, e.g. ppa:developer/someapp. And you can add it via the GUI method. It can take a while for the Ubuntu Software Centre to include the extra Repos, so please be patient. Alternative GUI program for Adding Repos and Installing apps is Synaptic Package Manager, but thats outside of the scope of this tutorial. Wallpaper: http://imgur.com/E4BVS