In the Washington DC area there are a number of house concert series and coffee house venues:

http://www.charm.net/~dirtylin/calendar.html has links to many of them. It includes Baltimore-area events.

Other sources of information are the Folklore Society of Greater Washington,   www.fsgw.org. Some event contact information is online at that site, but their newsletter is deep, comprehensive and wonderful. It would give you a good overview and you should request one mailed to you. It might be possible for them to email you a .pdf of the newsletter, if they produce it that way (In the summer months the newsletter is a pdf, rather than being printed and mailed).

www.marycliff.net   tells about all the area's upcoming folk-related events. It gives mostly telephone numbers, though, and might be hard to read if you weren't somewhat familiar with the contents. Mary Cliff also reads these on her radio program, "Traditions"'\, which airs on Saturday nights from 11 pm - 1 am Eastern Time at www.wamu.org, if you are able to listen to it.

-----While I was looking up these websites to post here, I went to the Links page on the FSGW website. I hadn't looked on that page before. I found a link to a local online radio station, Hober, that I had kind of forgotten about. I listened in and Hober Radio was airing a recording of Art Thieme doing a wonderful rendition of "Round About Nashville". What cirularity! Yay Mudcat!

Linda