Chicago Botanic Garden - 385-acre botanic garden in Glencoe offers 24 gardens with plants, flowers, greenhouses, educational classes and plant information. Events, visitor and membership information. Partners for Clean Air - Grass-roots coalition of regional government, business and community organizations. Features advocacy, legislation issues, a smog alert email newsletter, a Midwest HazeCam, air quality index, reports and forecasts and ozone data. A Naturalist's Tour of Southern Lake Michigan - Naturalist Joel Greenberg shares his eight favorite natural areas in the Chicagoland region. vPlants - A Virtual Herbarium of the Chicago Region - Searchable and browsable catalog of the herbarium collections of the Morton Arboretum, Field Museum, and Chicago Botanic Garden, including photos of many of the plant specimens. Chicago Geology - Includes a transcript of a 1902 report on the area's geology, plus outlines and photos of field trips to points of geologic interest in and around the city. Chicago Wilderness Habitat Project - Information about training and monitoring activities, including plant surveys, frog monitoring, and important bird areas. Chicago Audubon Society - Serves the Chicago area. Site includes conservation news, calendar of events, newsletter archives, and a rare bird alert. Lake-Cook Audubon Society - Chapter of the Illinois Audubon Society based in Highland Park. Information on bird walks and programs. Chicagoland Environmental Network - Resource on issues, volunteer opportunities, organizations, and resources in northeastern Illinois. Directory of member organizations and agencies, job opportunities, events, volunteer opportunities, and other news and information. Chicago Wilderness - Regional alliance of more than 260 public and private organizations working together to protect, restore, study and manage the precious natural ecosystems of the Chicago region for the benefit of the public. Includes news, initiatives, places and resources. Northwest Suburban Astronomers - Club based in the northwest suburbs of Chicago provides membership information, event calendar including star parties, tips for beginners, reading suggestions, observing information and photo gallery.