Folio Magazine December 2006 - In PDF Workflows, the Big Challenge is Color Management
http://www.foliomag.com/viewmedia.asp?prmMID=6870

Seybold San Francisco 2003 - PDF Workflows, turn-key solutions or do-it-yourself?
Powerpoint presentation
Audio transcript - it's a big MP3 and I'm at the end of it!

Infoworld Readers Choice 2003
(free registration required)

Ulitmate-Tech, Inc, April 2003
(dead link)

Printing Impressions, Sept. 2002
(free registration required)

Electronic Publishing, April 2001
(free registration required)

Creo advetorial in Printing Impressions August, 2004

A couple of recent comments from the Enfocus user forum:
comment 1
comment 2