I was thrilled today to see this article today calling for what I think it crucially necessary for Google Circles: a way for people to choose what content of different users that they see. The "follow" Circle is really useless without it, unless you're following a person who ONLY talks about one subject publicly. The way I think it should work is much like the way I have my different Twitter accounts set up: I have a personal account, which is just kind of a dumping ground for my random thoughts, including sports and politics; I have my professional account, where I talk mostly about tech, web services and business and is set up to be completely open, public and findable; and my music account. I mix up the content every now and then, getting personal on my professional and talking about music on my personal account, but I've found that the division works pretty well. But it's still three separate accounts, and while Tweetdeck makes it pretty easy to manag...
Where I spend my words when I've used up my Twitter allowance.