looking forward to blogging

I am quite interested in learning more about blogging. I know some people that have gone through the program and have been blogging. I already have intentions of using it this semester to get students to help each other out with questions about class. This semester will be one for experimenting with it to see what will and won't work well with my different classes. I'm really hoping this is something the students will use properly and get them interested in learning math.

Any tips for people who have blogged in the classroom, especially a math class? Some of the things I hope to see the blogs used for are homework help, test/quiz review and hopefully discussion of where math is used in everyday life so they can see the connection.