Today , in our Linux Page (in Spanish) we posted a brief review about installing Ubuntu Tweak and Moblock on Ubuntu 9.04. We have read different websites on these topics but the best are the official ones that we advise you to visit them:
http://ubuntu-tweak.com/downloads for Ubuntu Tweak and
http://moblock-deb.sourceforge.net/ for Moblock.
Ubuntu Tweak is the most flexible graphical interface to configure desktop and system options on your Jaunty. On the other side,Moblock is a powerful software to protect your privacy when you surf internet and it is based on a huge list of IP address which are not considered as friendly.
We strongly believe that the most efficient solution is to add the sources on your Software Sources (System – Administration – Software Sources); for Ubuntu Tweak:
1 – using Terminal, import the key sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com FE85409EEAB40ECCB65740816AF0E1940624A220
2 – import the source on the Software Sources

deb http://ppa.launchpad.net/tualatrix/ubuntu jaunty main
deb-src http://ppa.launchpad.net/tualatrix/ubuntu jaunty main

3 – install Ubuntu Tweak (using Terminal)
sudo apt-get update
sudo apt-get install ubuntu-tweak
To add Moblock in your sources it is necessary:
1 – import the keys, using Terminal
gpg –keyserver keyserver.ubuntu.com –recv-keys 9C0042C8
gpg –export –armor 9C0042C8 | sudo apt-key add –
2 – import the source on the Software Sources
deb http://ppa.launchpad.net/jre-phoenix/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/jre-phoenix/ppa/ubuntu jaunty main
3 – install Moblock (using Terminal)
sudo aptitude update
sudo aptitude install moblock blockcontrol mobloquer

Recommended!