Professional Association of Wisconsin Licensed Investigators
http://www.pawli.com

Free Legal Directory! List your info for free
http://www.legal-listings.com

MISSING PERSONS RESOURCE CENTER
http://www.pimall.com/nais/missingm.html

Links to Free Public Record Sites
A really thorough article on finding free public records on the net.
http://www.netforlawyers.com/article_public_records.htm

BRB Publications
One of the nation's top publishers of law and public record-related books. Their books are used by beginners and experts alike!
http://www.brbpub.com

CrimeNet
Database of convicted criminals, missing persons, wanted persons, unsolved crimes, free weekly newsletter and more
http://www.crimenet.com.au