www.ebparks.org – East Bay Regional Parks District
www.baynature.com (magazine)
www.savesfbay.org – Save the Bay
sfep.abag.ca.gov –SF Estuary Project
www.cal-ipc.org – California Invasive Plant Council
www.cnps.org – California Native Plant Society
www.calflora.org – database of California plants with photos
www.rivernetwork.org – “helping people understand, protect and restore rivers”
www.nps.gov/rtca – NPS Rivers, Trails, and Conservation Assistance Program
www.nwf.org/frogwatchUSA – National Wildlife Federation’s Frog Survey

www.saveelsobrantehills.org – Clark Road Project
www.urbancreeks.org - Urban Creeks Council
www.alamedacreek.org – Alameda Creek Alliance
www.fivecreeks.org - Friends of Five Creeks
www.nativeplants.org - Friends of the Regional Parks Botanic Garden
www.frogpark.org – Friends of the Greenbelt
www.sausalcreek.org – Friends of Sausal Creek
www.thewatershedproject.org/temescal – Friends of Temescal Creek
www.creativedifferences.com/baxtercreek – Friends of Baxter Creek
www.pinolecreek.org – Friends of Pinole Creek Watershed
www.thewatershedproject.org - The Watershed Project