Diddy joins Bravo, The CW and Modern Luxury who all have their own versions of the BlackBook guide and BlackBook's plan is to launch "hundreds of them."
To promote the new app, Diddy is appearing on the cover of the October issue. It's all part of the company's plan to expand their guidebook brand to the mobile media world.
Whose BlackBook do U want to see?
[Image via A. Miller / WENN.]