The vSphere design consideration is a platform for industry experts to share their learned lessons to the broader audience. In this book, over a 100 tweet-sized design considerations are listed grouped in various categories, such as Host design, cluster design, network & security.
Each author is listed with his or her twitter handle so you can easily add them to your twitter stream to receive more useful tips about managing your virtual infrastructure. The book was published and distributed for free at VMworld by PernixData.
You can still get a free copy of the vSphere Design Pocket e-book at Pernixdata.