A Book by Kim Brand.

Publication date: October 15, 2010.
Contact the author here.

Sympathetic Books & Articles:

eWeek: The Problem with E-Mail by Frank Ohlhorst

New York Times: Information Overload

Great e-mail management advice at 43 Folders.

The Holy Grail: How to outsource your inbox by Tim Ferriss

You Are Not Your Inbox by Stever Robbins

Forbes: How To Handle E-Mail Deluge

John Freeman: The Tyranny of E-Mail

[Not the only] Rules of E-Mail Etiquette

E-Mail is making you stupid - really (and here too, courtesy of your friends at HP.)