The Oklahoma Bar Association has a Cybersleuthing webpage with links to resources (many free) for finding information on individuals and businesses.
The State of Oklahoma's website (www.ok.gov) has many great resources available to users. For example, there are links for searching legal and court documents, current and past bills, registered businesses, and much more. A complete list of agencies is available at http://www.ok.gov/agency.php.
County website are also useful sources of information. For example, on the Oklahoma County website, you can get real property information, view U.C.C. filings on personal property, run warrant searches, and find information about a variety of local governmental services. A simple online search should lead you to other county websites as needed.
Oklahoma Legal Notices provides a free searchable database of legal notices.
The Oklahoma Department of Corrections provides tools to look up inmates in three categories: offenders, sex offenders, and violent offenders.
The Oklahoma Board of Medical Licensure and Supervision has a searchable database providing licensing information on a host of medical professionals, ranging from Anesthesiologist Assistants to Medical Doctors to Therapeutic Recreation Specialists. You can find out the status of someone's license as well as any disciplinary action status.
Many Oklahoma counties allow public searches of property online that provide information on property value, owner, history of the property, etc.:
In addition, the National Association of Unclaimed Property Administrators has a website at unclaimed.org that has links to each state's unclaimed property program.