http://www.subnetonline.com/cgi-bin/webtools/nslookup.pl
http://www.channel1.com/cgi-bin/nslookup.cgi
http://centralops.net/co/NsLookup.vbs.asp
http://networking.ringofsaturn.com/Tools/nslookup.php
http://www.intnet.net/Support/utility.html
http://www.all-nettools.com/toolbox
http://www.kloth.net/services/nslookup.php