I'm proud to announce another code release: BetterThumbs WordPress Plugin (Follow the link for more details)
The BetterThumbs WordPress Plugin creates true thumbnails for full-size images that are resized in the post editor, instead of just letting the browser scale down the original full-size image. This translates into faster load times and lower bandwidth usage.
I built this plugin out of frustration with the way WordPress handles images that have been resized in the post editor. To be honest, I believe this functionality should be built into WordPress — it just makes more sense to create true thumbnails based on the dimensions the author wants.
So enjoy and leave your feedback!