ScreenBin

ScreenBin is a tool for IT folk who want to share screenshots fast. You can do it in 3 steps: Take a screenshot; Press U; Paste the URL to your friend.
ScreenBin automatically appears when you take a screenshot. In-fact it will detect most image data inside the clipboard. Windows has a built in screenshot feature. Just press the Print button on your keyboard (also labelled as PrtScr). Pressing ALT+Print will capture just the current program you are using. When ScreenBin pops up, just press U to upload your image, and when the upload is complete, your clipboard will magically have the URL to that image inside it.