The ways one could use blogs in the classroom is really dependent on how creative the blog creator wants to be. I think blogs would be used in a variety ways to deliver information, socialize or connect to people with similar interests. I created a blog about four years ago for elementary students to use to keep academic skills sharpened over the summer. I set up activities for students to complete each week which included academic, gross motor and a recipe to make which may or may not have been food related. The students were offered an incentive to complete the activities each week and they had to post at the end of the week in regards to what they thought about the activity or how they used the activity. I didn't have a strong showing I think only about ten students participated all the way through. At the beginning of the school year each student who successfully completed the activities were given gift cards to stores around the area.
At the elementary level, I would like to set up a blog where students would go and discuss different genera they were reading in their guided reading groups. I would like to expand this notion and develop a book club type of blog where students could go and talk about specific parts of chapter books they are reading. I may post guiding questions to help develop the discussion threads.
I think that blogging this way will help students develop a deeper understanding of course material or questioning skills. I am a teacher consultant/intervention teacher at the elementary level and I hope blogging would allow me to connect children to a deeper level of thinking. My rational is for this thought is that students are already exposed to various forms of media and technology I would like to develop skills that would allow students to further develop their academic skills in the area of reading.