Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share...
piZap - Free online photo editing software.
Kamoso - Kamoso is a webcam recorder from KDE community.
Photoshop.com - Photoshop.
Cameroid - Just like Photo Booth - exept is online. Have fun with your webcam. Apply text and funny effects.
FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.