Adding a software repository from Ubuntu PPA in Ubuntu Karmic and later

This new method is easier than the old one which required you to edit your software sources manually, and then get the key and import it. The new one is as follows:

1. Go to the PPA page of your interest, e.g. URL, check the name of the new repository, it is "ppa:transmissionbt/ppa" in my example.
2. Open a terminal and type "sudo add-apt-repository ppa:transmissionbt/ppa"
3. Done! This both adds the entry to your software sources list as well as importing the key which authenticates that repository.
4. Don't forget to refresh your repository to be able to update/install new packages "sudo apt-get update"

PPA = Personal Package Archives, i.e. the user-contributed software repositories.

Playdeb; An Ubuntu Games Repository

The very famous www.getdeb.net website for providing a LOT of packages for Ubuntu including Games, Audio, Multimedia, Development...etc has created a project (still in beta stage till the time of this entry) which aims at providing a repository specialized in Games ONLY! This is so as to enable the website users to get the latest games and their updates without having to download them manually.

I think it's a nice-to-have idea! Anyway, It was called Playbuntu at first, but due to some problems with Canonical (The company behind Ubuntu), it's now called Playdeb.

To install the new repo in Ubuntu, you just need to download and install two extra packages:
apturl-package and the playdeb package. The first one is for solving a bug that existed in Ubuntu Hardy (8.04), but I found out that I have a newer version on my Ubuntu (Intrepid Ibex), so I just installed the second one. Have fun :-)

The website URL: http://www.playdeb.net/