dc.biking		Bicycles and biking in the Washington DC Metro area.
dc.config		Creating & propagating groups in the Washington dc.* hierarchy.
dc.dining		Dining in the Washington, DC area.
dc.driving		Highway travel around Washington DC.
dc.forsale.computers	Computer equipment and computer peripherals.
dc.forsale.misc		Items wanted and forsale in the Washington DC area.
dc.general		Items of general interest to the Washington, DC area.
dc.housing		Housing in the Washington, DC area.
dc.jobs			Job offerings and jobs wanted around Washington, DC.
dc.media		Newspapers, radio and TV in the DC area.
dc.music		Music-related issued in the DC area.
dc.org.linux-users	DC area Linux users group announcements etc.
dc.politics		Discussion group for D.C. area local politics.
dc.redskins		The Washington Redskins pro football team.
dc.romance		Romance for couples and singles in the USA's capital area.
dc.smithsonian		Smithsonian related events in the Washington, DC area.
dc.test			Testing in the Washington, DC area.
dc.urban-planning	Discussion of transportation, land use in the DC area