On your first point, do you think the corporate tumblr's have lead to commercial success? All I've seen so far as far as company tumblr's go are Denny's and Na

On your first point, do you think the corporate tumblr's have lead to commercial success? All I've seen so far as far as company tumblr's go are Denny's and National Geographic so I don't think I could make a valid assertion on the subject. I know that company Twitters usually seem very hollow so I'd love to be pointed to some great company tumblrs if you have them! I thought about your second point, but I personally determined that the intense amount of customizability wasn't a real reason for tumblr's success with its user base. Many tumblrs use the same 20 themes and those who overly-customize it lead down a MySpace-esque road. I've actually found myself being more annoyed with the immense amount of customizations. Please remember that I wrote this in an attempt to understand why users used tumblr, not discussing every aspect of the site. Finally, I joined a month ago so I imagine I missed the "overall shift" of posts, so I apologize for being unable to write about that!