Free Screenshot tools

We use TinyGrab: http://tinygrab.com/download.php

As a design agency we are constantly sharing stuff between each other. You can configure it so it automatically uploads to FTP and copies the link. Really fast and super handy.

We've also been really happy with the dual cursor screen sharing tool Screenhero: http://screenhero.com/ when screenshots just don't cut it.

I recently discovered http://www.cockos.com/licecap/ which lets me take screen captures and save them as gifs. Definitely helpful when trying to capture CSS animation bugs.