Shrink Pic

Shrink Pic - Free photo resizer for email, IM, blogging and web galleries:

"Shrink Pic runs in the background. It has a taskbar icon which tells you it's waiting for photos to be sent.

Then, when it detects that you're sending a large photo, it automatically creates a temporary copy, resizes it and sends it instead. It gives you a notice message, so you'll know the photo you sent was resized."