The TechCrunch blog just posted about a new web tool called Backboard. It allows you to easily upload a document/picture, or grab an image/webpage off the Internet; describe it (or write whatever you want); and then you can email the url to anyone you want who can then give feedback on it.
It’s very simple to use and, best of all, no registration is required (which is the primary reason I’m posting about it). I think there are a lot of other more useful tools out there, but it could be an easy assignment with English Language Learners, especially Beginners. They could be assigned to find a picture of something on the Net, write about it, and then others could give their feedback.
On negative aspect of the site is that there is no comment moderation and, in fact, it didn’t seem to me that there was a way to even delete comments you didn’t want.