I was able to comment on a number of blogs today. Another teacher had commented on one of my postings. I had not replied back, but have now done so. I can see if a person had a blog with many people posting to the blog that it would be really difficult to reply individually to each one, but it also does seem rather rude, if someone "talks" to you, to not talk back.
I also now am a member of the John Wayne forum. It is a blog. I made my first posting on that site today. That was interesting... we'll see what happens. They had a thread about a John Wayne movie I used to show my 7th grade Texas History students, so I wrote about that and why I used the movie in my class.