@Pamela: there is a 'Traffic Sources' option under the Hubs menu in 'My Account.' I find that between using that, Google Analytics, and creating different referral trackers for different sites I create backlinks on (e.g., one for Twitter, one for Facebook, one for forums, etc.), I have a pretty good idea of where my traffic's coming from. I haven't used Blogger though, so perhaps it's able to provide more detailed info.
This is fairly petty, but one thing I'd change is to make it easier for us to look up our previous answers to questions (maybe a 'My Answers' page) - there are some I've responded to that would be great inspiration for a later hub, or ideas that later come back to me, and I'd like to remember a part of the discussion, but it's virtually impossible to locate. (I am fairly new, however, so maybe there is a solution to this that I'm not yet aware of.)