Can someone help me understand how tumblr works and how to get notifications? What I want is to get email updates when a change is made on a tumblr blog that I'm following, but it doesn't seem to have this capability. All I can think of is that I can go to tumblr and it shows me updates to my subscribed blogs, but they're mixed in with other blogs that I don't know. What is the point of folowing a blog then? It doesn't seem to do anything special except show my support. I want to get updates emailed to me ... via tumblr, not via a 3rd party site.