SageThumbs - SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats...
FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.
ThumbView - ThumbView enables image thumbnails and tooltips in Microsoft Windows XP Explorer (does not work on...
Photoshop.com - Photoshop.
Icaros - Icaros is a collection of lightweight, high quality, Windows Shell Extensions
piZap - Free online photo editing software.