A screenshot utility written in c++/Qt which allows you to quickly capture the area of your screen and:
Upload it to your own server
Upload it to imgur
And have a link directly in your clipboard
Save it on your hdd
Copy it to your clipboard
Snap is an OpenSource ScreenShot capturing utility written completely using Java Swing. It has a GUI Version and a command line variant which the user can choose based upon his/her choice. The captured ScreenShot can be saved in either jpg or png format.