Edit Your Photos With Fun.

Get creative with effects, fonts, shapes, and frames.
Picnik makes your photos fabulous with easy to use yet powerful editing tools.
Salient features of Picnik:

• Fix your photos in just one click
• Use advanced controls to fine-tune your results
• Crop, resize, and rotate in real-time
• Tons of special effects, from artsy to fun
• Astoundingly fast, right in your browser
• Awesome fonts and top-quality type tool
• Basketfuls of shapes from hand-picked designers
• Works on Mac, Windows, and Linux
• No download required, nothing to install.

It works with many image  sharing social sites like Facebook,Myspace,PhotoBucket,Picasa,Flickr,Webs etc.

It is absolutely free.No registration required.