The contributors to the book include respected community and industry leaders like Chris Wahl, William Lam and Frank himself. The remaining contributors (myself included) all run excellent tech blogs and are active on Twitter so make sure you view the list on the download page and follow them on the social networks.
Again, thanks to Frank and the team at PernixData for taking the time to get this project together. Download the Book from the link below and look out for the Hard Copy at an event near you!
http://www.pernixdata.com/resource/vsphere-design-pocketbook-30-social-media-edition