Blogging in a class room

I have blogged before in a classroom, but that was only one time, and no more. I thought that blogging would be really stupid, and boring, and i thought that it would just be a waste of time. I thought that there was not going to be a point because all you do is sit at a computer and just blog about things. I said "oh well, they're just going to see our blog post, and no ones going to care."
Well that's not true. you can express what you really think about things that we;re doing in the class room, or things that you want to talk about. No one criticizes you, and they don't say anything bad. They comment on it, and it can be fun only if you make it fun. There are a lot of topics to talk about, and I've seen a lot of good topics, and research projects.
I've learned that once you get to write about what you want, then you're set, and can do anything.