So some of these numbers are generic/abstract/small sample math but it looks like the average blog on FOHBOH gets about 10% of the viewers to actually comment on it.
The really active blogs can get 20% to 25% of the viewers to actually comment on them.
When I first joined this site I have to admit that I was quiet and basically 'took it all in'. Until I found people I knew and topics that I knew I had insight on.
I feel that most people will respond to a blog or discussion on here once they are comfortable with the content they are seeing or there is something that strikes them deep from within that pursuades them to respond or start a discussion.
Think about how quickly this site has grown...at first it was easy to keep tabs on what was going on. Now, I have to have the time to really dedicate to this as it has gotten more complex.
There isn't anything wrong with sitting back and taking it in. But think about how much better this site would be if EVERYONE actively participated the way some of us do!!