Elaine - Sort of. What's better than e.g. Twitter is that I can have both work and personal contacts and segment my posts to their interests. But in order to get this, I also have to (inevitably) take on more management of who is interested in my posts and why; on Twitter anyone can follow me without any intervention from me. So the asymmetric thing is quite easy and natural on Twitter; I follow who I want and don't worry about who is following me or why. Here it can't be quite that easy if I want to do targeted posts, but it could be easier than it is, if I could just have one circle per "area of interest" and add people to it as read/write or read-only (i.e. I don't mind them reading my stuff targeted to that circle, but I don't really care to see their stuff in my stream). Two different circles is reasonable, as they are different relationship levels; it just requires more manual upkeep.