I came across this site while reading lifehacker. Tablefy is a site where you can create a table to compare any number of items. I just gave a presentation on iPods and was looking for an easy way to compare them. Too bad I didn't know about this.
I ran through it quickly. It is simple and was a breeze to do. Beside just adding text, you can give a url of an image. Tablefy will automatically create a thumbnail for you. It is also possible to add a youtube video, among other media.
The site also allows you to save your own tables to edit later. You can also search for other comparisons and leave comments. I can see great uses in education, like comparing characters, geometric shapes, and plants and animals.
go to the table!
The best part, you can embedded in your own wiki or website. There is an also an option to keep your table private, if you don't share well.