Blogging Rules for Educators

I came across this wiki page (click on my title to access), and was inspired to start something similar here. Since this week, we need to think about ways to incorporate our blogs into our classroom, I felt it's important to establish generic rules for the students when using educational blogs. Here's where I am asking for your help. Please post any rules you deem appropriate. In the near future, I will compile the list and give access to all of you. Thank your for your time and valuable input!