InmatesPlus is a website that has links to 43 out of 50 State Departments of Corrections with information on currently incarcerated inmates. Some states provide pictures, release date, and the crimes committed, while others will only list their age and have no photographs. There are also links to some county jail inmate locates. Oklahoma City's jail is included in this list, which is searchable by name.
VINELink is the Victim Information and Notification Everyday network, which "allows crime victims to obtain timely and reliable information about criminal cases and the custody status of offenders 24 hours a day."
Mugshots.com is a website primarily devoted to displaying mugshots of celebrities, individuals who have committed outrageous acts, and those whose appearance is unusual. If you need to find the mugshot of someone who has been in the news lately, this can be worth a look.