JShot is a free and multiplatform screen captureand uploader utility which allows you to capture a part of your screen and publish it in one step.
It lets you upload your screenshot to an FTP server or image hosting server, or send it to an Instant Messaging partner. It also copies the url of your screenshot to the clipboard, so you can share your screenshot in one step. JShot also has drawing and image editing functionalities such as drawing shapes or adding text to the picture. It is possible to extend the functionality of JShot by installing plugins.
Capture a rectangle region, full screen or clipboard content Capture active window, taskbar, deskop, widget (Windows only) Upload via FTP, ImageShack, Skype, Twitter Drawing various shapes, adding text to the picture Moving, resizing shapes and updating shape properties System tray launcher Context menu integration (Windows) Screenshot history Undo/Redo System wide keyboard shortcuts (Windows and Linux x86) Auto Updater