Edit: Due to the fact that this article is old, the installation instructions may not work anymore. In order to successfully install the latest version of qBittorrent, please access the qbittorrent tag and open the latest article (the one on top).

The latest installation instructions for qBittorrent
In this article I will show you how to install qBittorrent on Ubuntu 13.04 Raring Ringtail.
As you may know, qBittorrent is an µTorrent alternative for Linux. Since uTorrent has been ported recently to Linux systems, qBittorrent was a good bittorent client replacement for uTorrent. They also have similar GUI.
To install qBittorrent on Ubuntu, do this:
Add the repository:
$ sudo add-apt-repository ppa:hydr0g3n/qbittorrent-stable
Update the local repositories:
$ sudo apt-get update
Install qBittorrent:
$ sudo apt-get install qbittorrent