ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.
Ralpha Image Resizer - High-speed image batch conversion tool
Photoshop.com - Photoshop.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
Fun Photo Box - FunPhotoBox is a free photo editing device where you can make clever pictures from your photographs.