In addition to the other places mentioned, don't forget that the .info
and .org TLDs run on pgsql. and run quite well too. Oracle tossed a
LOT of FUD when Afilias put in their bid to run the TLD on postgresql.
It was actually quite pathetic. Here's the comments from Oracle:
http://forum.icann.org/org-eval/gartner-report/msg00000.html
And the replies to the FUD here:
http://forum.icann.org/org-eval/gartner-report/msg00001.html
http://forum.icann.org/org-eval/gartner-report/msg00002.html