Many of our Ed Tech & Design students at the University of Northern Iowa have started blogging for extra credit. We setup a Google Form to make it easier for them to find each others' blog. Check out our blog directory to read what they're posting and to add your own comments!
What's a blog, you ask? Here's a great video that we often use to introduce our students to blogs.
And here's a great video showing how to start your own blog with Blogger.com