I had a similar concept pop in my noggin after reading this post on G+ from matt cutts: https://plus.google.com/109412257237874861202/posts/NEif81aW2FA?hl=en h

I had a similar concept pop in my noggin after reading this post on G+ from matt cutts: https://plus.google.com/109412257237874861202/posts/NEif81aW2FA?hl=en https://plus.google.com/109412257237874861202/posts/NEif81aW... Where he's trying to gauge audience interest (good) so that he can adjust his publishing style (I think this is bad). They should apply the "sparks" concept to the circles -- and do some automagic filtering to the type of content I'd like to see from a particular publisher/user.