http://www.identitynetwork.net/Articles-?blogid=2093
http://www.identitynetwork.net/Articles-?blogid=2093&view=post&articleid=42217&link=1&fldKeywords=&fldAuthor=Tom%20Donnan&fldTopic=0
http://www.identitynetwork.net/Articles-?blogid=2093&view=post&articleid=41967&link=1&fldKeywords=&fldAuthor=Tom%20Donnan&fldTopic=0