For Sale: Your Life on the Internet - Internet Life - NewsFactor Network: "Where To Start
Here is a short list of commercial Web sites to consider if you are looking to delve into someone's background. Features vary, but in general, expect to find access to records dealing with birth, death, adoption, bankruptcy, mortgages, marriages, divorces, felonies, small claims, foreclosures, tax liens, lawsuits, arrest warrants, and more.

For an online comparison, check out The Detective Detective, which lists the pros and cons of many sites that sell information.

Web Detective: Unlimited-use membership for $34.95.
Background Searcher: Lifetime membership for $39.95.
DataHound Detective: Search over 20,000 information-resource sites for $29.95
Online Investigations.net: One year's access is $29.95.
Intelius: Basic report $29.95; complete report $49.95.
Instant Detectives.net: In addition to providing access to public records, this site also sells a number of online spy tools such as keylogger software. Lifetime membership is $34.95.
Identity Crawler: Unlimited access for $19.95."