With the release of Adobe AIR, the flood of AIR apps are beginning to roll in. If you don't know, Adobe AIR is a development environment which allows developers to use Flash, Flex and Ajax to create rich Internet applications which are platform independent. You can download Adobe AIR here.

One AIR app that caught my eye is Shrink O'Matic, which allows you to easily (batch) resize (shrink) images. It handles JPGs, GIFs and PNGs.

Simply drag and drop images and they'll be resized as you wish! Options allow you to choose the output sizes, names and formats.