This is kind of silly, but:
I just started running ntpd on
tick.mattnordhoff.com in Dallas. Are any of you running an NTP server nearby? Do you mind if I configure my ntpd to sync from it?
(Actually, I know
someone is, cuz I saw it in the pool, but I feel like getting someone's email address from whois and emailing him just for this would be kind of creepy.

)
Edit (2011-03-28T15:41Z): I don't actively maintain this post. You should check my website or the internal services wiki page for current information. For example, one of the IPs listed below is deprecated, though it still works.
Edit (2009-06-14T13:31:35Z): To be more clear, here's a (partial) list of what it's available at:
- tick.mattnordhoff.com / 67.18.187.111, 2001:470:1f0f:b4::123:1
- ipv4.tick.mattnordhoff.com (IPv4-only)
- ipv6.tick.mattnordhoff.com (IPv6-only)
- private.tick.mattnordhoff.com / 192.168.130.4 (Dallas private network)
- NTP pool stats: IPv4, IPv6 (though the NTP pool site doesn't support IPv6 servers)
It's open access; just don't burn through my bandwidth or DoS me, etc.
IPv6 is through an HE tunnel, but I've got very low latency to the tunnel server.
Edit (2009-06-14T17:06:32Z): I put up a web page listing
my NTP servers. (Well, currently just serv
er, since there's only this one.)