How Can You Find a Lost Friend for Free? and are two free online resources you can use to find a lost friend. searches for individuals by name, city and state through public records while allows you to place an online ad with contact information for a specific person to contact you. specializes in helping people find lost friends, family, and people with whom they went to school or served in the military. also has the ability to search for people via reverse phone number lookup and address history. This resource also allows users to perform background checks, search for criminal records, and search public records to locate a person.