What Happened to the X.500 Directory?

The web happened:

end-users use browsers to view HTML;
use search engines or www.<entity> to find things
bigfoot, et al, provide single-point contact-info lookup;

Civil naming hasn't happened (yet?)

just the reverse: "amazon.com" is corporate name;
even in DNS, national registries less used than "dot com"

Corporate directory exposure a security problem

"LDAP doesn't go through the firewall"

Institutional white pages don't need complex DS

CSO, Whois, simple web have been easy, OK

National, corporate deployment still happening ...