HotShots: A Lightweight and Useful Screen Capture Tool
The default screen capture tool in Linux (particularly Ubuntu) is really minimal. As a blogger who need to take screenshots all the time, I always wished the default screen capture tool in Ubuntu could do more than just taking screenshot. Shutter is a good alternative, but it is getting heavy and it crashes regularly on my system. If you are looking for a good alternative, HotShots is one lightweight screen capture tool that could be useful for you.
Hotshots is a screenshot tool written with Qt. One of the things that differentiates it from the default screen capture tool is the built-in image editor that you can use immediately after taking screenshot. This will save you the effort of saving the screenshot and open it with another image editor.