From Switches to Targets: A Standardista's Journey

Version targeting allows browsers to much more easily develop new features and fix bugs and shortcomings in existing features, which has the potential to speed up the evolution of web design and development. That alone is reason enough to give it a chance.

Meyer, Eric. List Apart, A (2008). Articles>Web Design>Standards>Personalization

Keep Browser Lock-Out a Thing of the Past

Browser sniffing and deliberately preventing people using a so-called unsupported browser from entering a site is a thing from the past that we do not need these days.

Johansson, Roger. 456 Berea Street (2007). Articles>Web Design>Standards>Personalization