Image Editing
Online Tools
Editing Tools
http://picnik.com
http://www.tuxpi.com/
http://fotoflexer.com/
http://www.phixr.com
http://aviary.com/launch/phoenix?lang=en
http://app.citrify.com/
Image Editing
Resizing and Optimizing
http://www.shrinkpictures.com/
http://tools.dynamicdrive.com/imageoptimizer/
for Windows (Vista and 7): http://www.vso-software.fr/products/image_resizer/image_resizer.php
http://imageresizer.codeplex.com/releases/view/30247
for Windows XP: http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx