Birds of North America (BNA) is the most comprehensive reference for the life histories of over 760 bird species that breed in the United States and Canada.
"By maximizing the utility and accessibility of bird observations made each year by recreational and professional bird watchers, eBird is amassing one of the largest and fastest growing biodiversity data resources in existence."
The PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
Archive of defunct (as of 2016) learning community with "topic rooms" in genetics, cell biology, scientific communication and career planning. Read archived articles, blog posts, etc.