Audubon at Home - This site gives information on making our backyards healthier for birds, wildlife and people too.
Bird Source - This site is the combined effort of the Audubon Society and Cornell Lab of Ornithology. It lists the various Citizen Science Projects along with the ongoing results.
EBird - A project developed by the Cornell Lab of Ornithology and the National Audubon Society. This site provides a simple way to keep track of the birds you see in North America. Anyone can log on at anytime to submit North American Bird sightings or find out what others are seeing across the continent.
enature - Great online field guides including audio. Enature is a project of the National Wildlife Federation.
Lindsay Wildlife Museum - Walnut Creek, CA - Wildlife rehabilitation hospital treats native California birds and has a live collection of non-releasable birds and other animals.