http://www.freereg.org.uk/index.htm

http://freereg.rootsweb.com/search/index.htm

http://www.freecen.org.uk/cgi/search.pl

http://freepages.genealogy.rootsweb.com/~tinstaafl/

http://uk.geocities.com/davidbooty@btinternet.com/NorfolkSurnames/Index.html

http://www.freebmd.org.uk/

http://www.familysearch.org/

http://www.genuki.org.uk/

To join the Norfolk mailing list... send "subscribe" to norfolk-l-request@rootsweb.com (mail mode) or norfolk-d-request@rootsweb.com (digest mode).

The following is a paid subscription site, but extremely useful. 
http://www.ancestry.com/