Though not directly related to Advocacy, I did a quick walk-through of
http://www.postgresql.org/support/professional_support_northamerica
Thought I'd post it here as I'm pretty sure some of the site owners are on this list.
http://www.commandprompt.com/
didn't load
http://www.develix.com/
domain name expired on 01/16/06
http://www.evol-tech.com/
just the Parent Directory and cgi-bin
http://www.psecorporation.com/
page rank of 0. May want to submit site to DMOZ, Google, Yahoo, etc
http://www.sraapowergeres.com/
server not found --- maybe a typo in the url
Thanks,
Mike E.