shutter

KDE's KSnapshot has been my preferred screenshot tool, but Shutter looks a lot better. Powerful, versatile, cool.

I found Shutter 0.88.1-1 available in the Ubuntu 12.04 repos (looks like 0.88.3-1 is available in the Debian Wheezy repos), but 0.90 is the latest. You can install 0.90 (and keep up with the latest versions) in Ubuntu distros via PPA:

sudo add-apt-repository ppa:shutter/ppa
sudo apt-get update
sudo apt-get install shutter

I went with 0.88.1-1 in Kubuntu 12.04, from the main repos. Very nice. A couple of shots:

Sabayon users can install Shutter 0.90 right from the Sabayon repos. Here's a view from Fluxbox in Sabayon:

A link to the Shutter web site: http://shutter-project.org/