Blogger isn't new to me. I used it to create my blog for 23things and another technology course I took for my master's program. I find it useful to keep track of things I've learned and want to share with others. There are several blogs that I read created by friends to document their travels, families and new adventures.
As far as using it in the classroom, it's a great way to share all things that are happening in your classroom. I could see using it to let parents know about upcoming events, homework, the curriculum and spotlight students. Students could use it to share things they learning with other students and learn new technology.
