I meant to make reference in my last e-mail to the current issue of the Internet Protocol Journal (IPJ) from Cisco, particularly the article "Cloud Computing: A Primer" at http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_12-4/124_clou... .
(For those who aren't network specialists, yes, Cisco publishes the IPJ, but it maintains a very good record of being vendor- and product-agnostic. It is not, to be clear, a peer-reviewed academic journal, although all articles are reviewed by its editorial board before publication.)
-Adam