How might educational leaders use blogs?

As I learn to use a blog for the first time, it strikes me that those of us in leadership positions in public education need time to use the latest tools. Is it really necessary that we have so many meetings? My first priority is to lead....instructionally on my campus. Maybe a blog could help? I don't know. Right now it is something I am learning....at 11:22 pm...because my day is so busy leading a school and my nights are so busy with my wonderful family...that this is the time I can learn about it. Can this blog be made relevant and applicable to my work? We will see.