There are now 2 repositories available for Tor (application which enables users to communicate anonymously on the Internet): stable and experimental, for both Ubuntu and Debian. Until now there was only a stable repository.
Please note that the experimental repo Tor packages come with more features, but also more bugs.
These are the two TOR repositories:
where you substitute the name of your distro (Debian: etch, lenny or sid; Ubuntu: lucid, karmic, jaunty, intrepid or hardy) in place of <distribution>.
To add the repository key, use the following command:
More info on using and configuring TOR: here and here.
These are the two TOR repositories:
deb http://deb.torproject.org/torproject.org <distribution> main
deb http://deb.torproject.org/torproject.org experimental-<distribution> main
where you substitute the name of your distro (Debian: etch, lenny or sid; Ubuntu: lucid, karmic, jaunty, intrepid or hardy) in place of <distribution>.
To add the repository key, use the following command:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 886DDD89
More info on using and configuring TOR: here and here.