IMEX
IMEX is a free listing service designed to help businesses find markets for industrial by-products, surplus materials, and wastes in the Pacific Northwest. Businesses, offices, schools, and individuals "advertise" their surplus/unwanted materials, or materials that they are seeking, by submitting an electronic IMEX listing form. The listings are then posted on the IMEX website, where they are viewed by interested waste generators and waste recyclers.

ResourceFull Use
ResourceFull Use is an actively managed service that provides manufacturers and industry with workshops and a website-based mechanism to assess resource needs and actively exchange resources in the Portland Metro area.

BoneyardNW 
Boneyard NW is a free online marketplace connecting buyers and sellers of used commercial construction material in the Portland Metro area.

Freecycle
Freecycle provides local micro-exchange opportunities in numerous Oregon communities. The focus of this exchange is on household materials. All items listed on Freecycle must be given away for free.

PlantCatching 
Plant Catching is an online platform that enables gardeners to exchange surplus plants and materials with other gardeners in their area.