You cruise thru the current real estate blog posts, see a headline that grabs your attention..you stroll in to scope it out!Then you see some comments on one of your contributions.. so you check out the Rainer who pinged you. While checking his/her blog home, you scan thru the groups they are part of.
You catch the list on the left quickly but get a strong first impression. It's like a military cluster of medals or casually looking thru musical CD's, books on a shelf at a home you are waiting for your buyer at to show. The first impression of what groups the member is part of and the number of groups give you lots of insight.