Screenshoter is a background application that allow to share screenshots on the fly.
One may share a screenshot with:
The screenshot on the right show an ebanking screenshot being sent (and accepted) as a proof of payment.
The other one shows the request of screenshots as proofs of a bug report.
Once the application is running (have it run at startup) a click of shift+ctrl+2 (or shift+apple+2) will take the screenshot and show a main window prompting to send by email, or to a connected contact. For more details click here.