She started with a class blog (http://patonpond.blogspot.com), and now she’s moved into the world of wikis. Shannon Paton has been leading the way at the elementary level as she and her first grade class investigate web 2.0 applications. Contact her by email to receive an invitation to her class wiki.
Need some ideas for how to use a blog for your class? Try http://classroom20.ning.com/forum/topic/listForTag?tag=blogging for discussions about blogs in school.