Unfortunately Picnik is no longer available. For a very nice, free alternative, we recommend Pixlr Editor.
When adding images to your site, take the time to make sure the images you post reflect the professional image you want to convey to your visitors. One free web based application that makes this possible, with ease, is Picnik. Picnik will allow you to resize, optimize for quick downloads, add cool effects, drop shadows, frames and so much more. With just a few clicks of your mouse you can have great looking images that won’t take forever to download and frustrate your visitors.
Note: If you do find yourself using this tool often, as we believe you will, please consider paying for their premium service (only $24.95/year) to help support the program and ensure it stays around.