Couple of free online photo editors. They are not as great as
CreatingOnline editor, but since it is down for about a week already, I thought it would be useful to mention other tools also.
GifWorks is a good for situations when you need to fix your website's icon or create a new one as soon as possible. It is not as comfortable as Photoshop, but you can use 3D-effects, flips, crops, buttonizing, etc. You can save results of your work as GIF files only
MyImager. If you need to edit a photo have a look at MyImager. There you can amend images of up to 500Kb size for free. Interface is a bit annoying - you have to click a lot of "Submits" and the whole web-page is reloaded after you select the option. Another bad issue is the fact that MyImager will show you a lot of pop-ups, so better use it via Firefox with the pop-up filtering enabled.
Nevertheless, the tool does its core job quite well: you can adjust saturation, contrast, apply special photo effects etc.
Technorati tags: online image editor free photo editor

GifWorks

MyImager