Oregon Flora Project
- Resource for vascular plants of Oregon. Includes an online plant atlas, photo gallery, rare plant guide, and newsletter.
- http://www.oregonflora.org/

Climate of Oregon
- Narrative written by the State Climatologists and published by the National Climatic Data Center.
- http://www.wrcc.dri.edu/narratives/OREGON.htm

Tillamook Forest Heritage Trust
- A non-profit assisting the Oregon Department of Forestry with a capital and endowment fundraising campaign for the Tillamook Forest Interpretive Center. History and news provided.
- http://www.tillamookforestcenter.org

Oregon Department of Geology and Mineral Industries
- Offerings include information on geologic and coastal hazards, oil and gas in Oregon, mined land reclamation, and the "Nature of the Northwest Information Center."
- http://www.oregongeology.com

SOLV
- Non-profit organization with programs and projects to enhance the livability of Oregon. Volunteer events can be searched by type, date or location.
- http://www.solv.org/

Oregon Natural Desert Association
- Exists to protect, defend, and restore High Desert lands and water from irresponsible livestock grazing, mining, and geothermal development.
- http://www.onda.org/

Oregon Green School Association
- Provides schools with information they need to set up and maintain successful waste reduction programs and to recognize schools for their waste reduction achievements.
- http://www.oregongreenschools.org/

Native Plant Society of Oregon
- A statewide network of 13 chapters and 1000+ members dedicated to the enjoyment, conservation, and study of Oregon's native vegetation.
- http://www.npsoregon.org

Molalla RiverWatch, Molalla, Oregon, USA
- A non-profit organization created to protect, preserve, and restore the quality of the Molalla River and its tributaries.
- http://molallariverwatch.org

Friends of Opal Creek
- This non-profit maintains and stewards the Opal Creek Educational Center. Facility allows organizations and educational groups to gather and experience forest wilderness. Seminars sponsored.
- http://www.opalcreek.org

Association of Oregon Recyclers
- Supports recycling policies and programs at the local and state level. Provides a network where recyclers can share knowledge and expertise.
- http://www.aorr.org

The Oregon Biofuels Network
- Coordinates advocacy efforts in support of biofuels (biodiesel and ethanol). Describes the fuels, their benefits, and announcements.
- http://www.biofuels4oregon.org/

Oregon Soils
- Information about NRCS soil mapping status for the state and access to soil survey reports available electronically.
- http://www.or.nrcs.usda.gov/pnw_soil/

Looking for Oregon's Future: What is Sustainability?
- An exploration of the definitions, issues, and efforts related to achieving environmental sustainability in the state.
- http://oregonfuture.oregonstate.edu/

Oregon Toxics Alliance
- Promotes reduction in unnecessary use of toxic substances, particularly toxic materials in commercial fertilizers. Includes information about fertilizer contaminants.
- http://www.oregontoxics.org/

Walla Walla Basin Watershed Council
- Nonregulatory group established to improve watershed quality in northeastern Oregon. Includes extensive stream and water quality data, information about fish passage issues, reports of current activities, and other information.
- http://www.wwbwc.org/

Malheur Experiment Station Weed Control
- Information about crops, soils, weather, and cultivation techniques in Oregon.
- http://www.cropinfo.net/

Oregon CropMAP
- Agricultural production statistics and recommended agricultural products for each county.
- http://newcrop.hort.purdue.edu/newcrop/cropmap/oregon/default.html

Wolftree
- A charitable non-profit organization based in Portland, Oregon, providing educational programs in ecology. Field activities include studies of Cascade streams and mountain ecology.
- http://www.beoutside.org/

The Coastal Landscape Analysis and Modeling Study (CLAMS)
- Describes a multi-disciplinary research effort to analyze the ecological, economic, and social consequences of forest policies of in the Oregon Coast Range. Includes resource maps, data, publications and other information.
- http://www.fsl.orst.edu/clams/

OSU Water Connection
- Provides information on Oregon water and watershed topics. Also offers citizens access to Oregon State University scientists and extension agents.
- http://waterconnection.orst.edu/

Umatilla Comprehensive Monitoring Program
- Program to provide information on changes to the environment during the period of construction, operation, and closure of the U.S. Army Umatilla Chemical Demilitarization Facility in Oregon.
- http://www.umatilla-cmp.org

Oregon Water Resources Department
- Offers access to current stream flow data and studies of Oregon groundwater and surface water resources.
- http://www.wrd.state.or.us/

The Great Blue Heron
- An educational resource for Backyard Birders with information on The Columbia Slough in Portland, Oregon.
- http://www.thegreatblueheron.com/