Yesterday, I found out via a great blog called "The Cutest blog on the block" about a great way to do this by ordering a printed version of your blog.
If you are using a class blog to record written texts, animations or drawings made by your students, wouldn't it be superb to turn the blog posts into a book which could be bought by parents?
A 20-page softcover book - $15.95
A hardcover copy - $25.95
extra pages only 40c