The tools on this page are all designed to allow you to do something with your photographs. I will not list all the photo editors available but will rather be looking for tools that allow you to do something extra with your photos. You may also consider looking at the
Presentation/Slideshow, Cartoon and Comics pages. While many of the tools listed below also support presentations the primary output for these tools will be printed.
1.
Zoomr - This tool can be started without validating your e-mail. It has a simple photo uploader which worked quickly. I think the idea is that you can post your photos and then talk to others about them using a blog like tool called a zipline. Not overly impressed.
2.
Flickr -
One of the original photo sharing tools. You can upload and edit your photos and allow others to see and comment upon them. Photos can then be made into cards, photo cubes, calendars and photobooks. Increasingly other tools are allowing you to import photos from other accounts and because of Flickr's high profile you are almost certainly going to be able to import photos from Flickr to other tools. It may therefore well be worth students using a Flickr account as standard to host all of their images wihch can then be reused in several tools.3.
Photoflexer - Sometimes you want to edit a photo before putting it into another tool such as a website. If you don't have expensive software such as Photoshop then Web 2.0 may just be the solution you need. A number of free tools have started to appear which allow you to edit photos online much the way you used to have to do with a desktop app. You can import photos from your hard drive or from other sources such as Picassa or Flickr. The photo below was produced using the tool. While it worked well I was unable to save the file to my PC even though I should have been able to.

4.
Mixbook -
You can begin the tool without validating your e-mail. You can control who has access to the books you create and who has the right to edit. Pictures can be uploaded from your hard drive or imported from other services such as Picasa. The finished product is an online book which can also be printed. If you were doing several books as a class project you could perhaps purchase the best one.