The Resource Exchange Network for Eliminating Waste (RENEW):
This tool is designed to help facilities in EPA Region 6 (Arkansas, New Mexico, Oklahoma, Louisiana and Texas) exchange materials that would otherwise be disposed of. RENEW allows you to see materials available at a facility, or post your own materials. Facilities who post materials can avoid disposal costs, and possibly reduce their regulatory burden. Searching available materials helps you find materials for your facility at a reduced cost, often free.
The Freecycle Network (often abbreviated TFN) is non-profit organization registered in the state of Arizona, USA, that organizes a worldwide network of "gifting" groups, aiming to divert reusable goods from landfill. It provides a worldwide online registry, and coordinates the creation of local groups and forums for individuals and non-profits to offer and receive free items for reuse or recycling, promoting gift economics as a motivating cultural outlook. "Changing the world one gift at a time" is The Freecycle Network's official tagline. Find Oklahoma Freecycle groups.
The Chickasaw Nation ReUse Center in Ada helps keep reusable items out of landfills. Smaller landfills equal less pollution to the environment. The Chickasaw Nation ReUse Center accepts new and gently used items for reuse. It is free to drop off or pick up items at the center and all services are open to the public on Tuesday and Thursday.
Earth911 has an excellent listing of mail-back programs across the country.