sophielerlei nailed it however there is a easy to use program from ulead.com called smart saver pro that does a lot more than optimize thumbnails. They also have paint programs and 3D programs and am quite suprised that almost nobody I know of seems to use them....they are professional grade producers and their paint prog Photo Impact also supports PS plugins but they have awesome plugins built into PhotoImpact7 too. Not to mention plugs for PS as well. Great place to shop!