SpeedCap

From Sonetix:

SpeedCap is a way of sharing a screen capture. All you need to do is select an area on your screen. In a second you will have the capture available for online sharing with the link automatically copied to your clipboard. With SpeedCap, images are automatically uploaded and the links are automatically copied to your clipboard. Get your screencaps online. SpeedCap uploads your screencaps to our storage facility automatically. Moreover, after the upload is finished, the link to the screencap will be copied to your clipboard as well. SpeedCap has limited, non-invasive advertising. You will not be bothered by the ads placed, and with Premium, you can completely remove them altogether. SpeedCap is free to use, with no limitations.