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This webtool can be accessed at this website: http://storybird.com/

It features a large selection of ebooks that include old favourites and new texts. Also, it provides templates to write stories on  as well as the ability to add visual interest to a book by choosing images from a large selection.

This is a very helpful tool to use in the classroom because it gives English students who may not be comfortable with drawing or art the opportunity to add visuals to their written composition without having to draw.

I would recommend this tool be used for junior high to high school students because it does require some pre-knowledge of computers and web tools, and is quite similar to PowerPoint layouts.

There do not seem to be any age restrictions on signing up. Also it is free and allows all students to access it, but older students would be able to get the most out of it.