The Essex Birdwatching Society has a new look and much more information on its relaunched site. The society is the main source for birding information in the county. It organises field and indoor meetings and publishes the award-winning
Essex Bird Report. Its recorders maintain the county list.
Essex Wildlife Trust, which maintains sites of scientific interest or environmental sensitivity in the county, including Stanford Warren and Hanningfield.
The East London Birders' Forum was set up in August 1997 as a forum for local birders to network more easily and to accumulate data on the local avifauna and most importantly to promote the importance of local patch birding.
Has two sites in Essex, including Old Hall Marshes and Copperas Bay on the River Stour.
The South East Essex RSPB Local Group has a web-site with local information, news, activities, and links to many other useful sites.