John Samuelsen says in court papers filed Friday that the blog has repeatedly defamed him with false accusations of incompetence and financial improprieties.
There was no immediate answer to an e-mail sent to an address posted on the blog. It's housed by Google-owned Blogspot.com.
Google Inc. declined to comment. The Mountain View, Calif.-based company says it doesn't discuss individual cases to protect users' privacy.
A growing number of cases have cropped up since Vogue cover model Liskula Cohen got an online detractor's name by court order last year.