Google public DNS.

[theholm]

theholm@work-laptop:~$ nslookup -q=TXT publicdns.google.com 8.8.8.8
Server: 8.8.8.8
Address: 8.8.8.8#53

Non-authoritative answer:
publicdns.google.com text = "http://xkcd.com/1361/"

Authoritative answers can be found from:

theholm@work-laptop:~$

via furry