The ever changing Google SERPs showed me at the end of last week a new way of presenting blog and forum posts. This is genuinely helpful. I havent seen it since, but if you enlarge the image below by clicking on the image you will see an addition piece of text like.
“4 posts – 2 authors – Last post: 12 Mar 2007”

You dont see many personal blogs in the SERPs, and by definition you need at least two ‘authors’ to be a multi-person blog and forum. It seems the Google has that info and even wants to share it now.
Take a look for yourself.