xVideoServiceThief is a Desktop based video downloader for Linux, Windows and Mac. It is capable of downloading videos from Youtube, Google, Yahoo and various other sites. You can even queue the videos and it downloads with resume support (if the server supports it). It can resume Youtube videos.

It can be downloaded from:
http://xviservicethief.sourceforge.net/index.php?action=downloads#Linux

To install it in Ubuntu, all you need to do is extract it and run install.sh (double click and “Run in Terminal” or open terminal and execute ./install.sh). It will be installed to your home directory (eg /home/khattam/xVideoServiceThief). To run it, just double click the xvst executible. If it fails to run, make sure you have installed libqt4.

Hope this helps.

GYach-E supports Voice Chat and Webcam for Yahoo! Messenger in Linux. It can be installed in most Linux distros by compilation from source. Visit the project homepage here.

Ubutnu users can install GYach-E by simply enabling repository and installing via Synaptic Package Manager.

Enabling the Repository:
Open up Synaptic Package manager. Click on Settings, Repositories.
Click on Third Party Updates tab and add the two lines one at a time according to the Ubuntu version you are using.

For Jaunty Jackalope:
deb http://ppa.launchpad.net/loell/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/loell/ppa/ubuntu jaunty main

For Intrepid Ibex
deb http://ppa.launchpad.net/loell/ppa/ubuntu intrepid main
deb-src http://ppa.launchpad.net/loell/ppa/ubuntu intrepid main

For Hardy Heron
deb http://ppa.launchpad.net/loell/ppa/ubuntu hardy main
deb-src http://ppa.launchpad.net/loell/ppa/ubuntu hardy main

For Gutsy Gibbon
deb http://ppa.launchpad.net/loell/ppa/ubuntu gutsy main
deb-src http://ppa.launchpad.net/loell/ppa/ubuntu gutsy main

Refreshing the software list
Click on Reload in Synaptic and wait for the list update to complete.

Installing GYachE Improved
Search for gyachi in synaptic and mark for installation, apply.

Now, Launch Gyach-E from Internet menu and enjoy.