I just discovered that in Google Reader you can see how many people have subscribed to the blogs that you subscribe to. You can also use this handy tool to find out how popular you are if you subscribe to your own blog (like yours truly). Here is a little run down of some of the blogs that I subscribe to:
Cool Cat Teacher: 1,205 subscribers
Pooch Cafe: 35 subscribers
Indexed: 10,615 subscribers
SJ's Beat: 4 subscribers (one being me!)
I won't list any of the RVB, you can check yourself out.