Katoomba Group

 http://www.katoombagroup.org/

World Agroforestry Center

 http://www.worldagroforestry.org/cres/

The Environmental Trading Network

 http://www.envtn.org

American Heritage Rivers Initiative

 http://www.epa.gov/OWOW/heritage/rivers.html

Conifer Group

 http://www.conifergroup.com/

Heritage Seedlings, Inc.

 http://www.heritageseedlings.com/

Wildwood Mahonia

 http://www.wildwoodco.com/

SOLV

 http://www.solv.org/

Portland State University

 http://www.pdx.edu/

Oregon State University

 http://oregonstate.edu/

University of Oregon Institute for a Sustainable Environment

 http://gladstone.uoregon.edu/~enviro/

Oregon Association of Conservation Districts

 http://www.oacd.org/

Oak Lodge Sanitary District

 http://www.oaklodgesanitary.com/

City of Portland

 http://www.portlandonline.com/

City of Eugene

 http://www.eugene-or.gov/portal/server.pt

City of Salem

 http://www.cityofsalem.net/

City of Albany

 http://www.ci.albany.or.us/

Clean Water Services

 http://www.cleanwaterservices.org/

Defenders of Wildlife

 http://www.biodiversitypartners.org/

Oregon Environmental Council

 http://www.oeconline.org/

Willamette Riverkeeper

 http://www.willamette-riverkeeper.org/

Oregon Business Association

 http://www.oba-online.org/

Oregon Business Council

 http://www.orbusinesscouncil.org/

Associated Oregon Industries

 http://www.aoi.org/

Oregon Department of Environmental Quality

 http://www.oregon.gov/DEQ/

Oregon Association of Clean Water Agencies

 http://www.oracwa.org/

Ecotrust

 http://www.ecotrust.org

Ecosystem Marketplace 

 http://ecosystemmarketplace.com/index.php

Forest Trends

 http://www.katoombagroup.org/

Ecosystem Services Project

 http://www.ecosystemservicesproject.org/

Willamette Basin Explorer - Natural Resources Digital Library

 http://www.willametteexplorer.info/index.aspx