ummm celebrity blog , millions want to read , but I am sure with the kind of schedule they cannot write it , so they might hire a blog writer. you know outsourcing the blog.
may be and may be not.
...cuz blogs really dont require a plot. it is simply a flow of your thoughts.
btw blogs are very in these days and with the increasing development of Web 2.0 , if these agent of change (actors) wont keep up with the technology their name might be eroded and only left to embellish the history books.
...so they might hire someone to write for them but have to present central theme of it. infact i strongly believe that technology is like a math about which u get to know more through experiencing it first hand.