Links Mainebirding.net contains a lot of info about birding in the state. Paul Garrity's site contains good lists and birder resources. Colby College hosts the state's e-mail list serve that enables enthusiasts to post and receive immediate alerts on unusual sightings. This listserv is the primary e-mail alert in the state. Maine Audubon offers numerous field trips and programs - including international tours and field ornithology camps. Maine Audubon operates under the umbrella of National Audubon. Several chapters of Maine Audubon also have sites with information about chapter-led field trips and programs. These include the Penobscot Valley Chapter in the Bangor area, York County Audubon in Southern Maine, Merrymeeting Audubon in the lower Midcoast area north of Portland and Midcoast Audubon in the upper Midcoast area, just south of Acadia. Derek Lovitch and family run the Freeport Wild Bird Supply in Freeport. They lead local birding trips and several national and international tours. The Stanton Bird Club is an independent birding organization that is steward of the Thorncrag Bird Sanctuary in Lewiston (Central Cities region). The Orono Bog Walk is a fabulous new boardwalk across a raised peat bog adjacent to Bangor. It opened in 2003 and is a must stop in Bangor. There are many sites offering tips about Acadia National Park, including sites from National Geographic, the National Wildlife Foundation, Outdoor Places, and the National Park Service.