Email is the best (and fastest) way:
Our President wants to hear suggestions for events, gossip for the newsletter, gripes, and compliments. You can also email the President for all membership-related questions (Did I pay my dues? Am I on the list?): president@dcswa.org
If our President is unavailable, try our Vice President: vicepres@dcswa.org.
Our Web Manager will field all Web-related issues at webmaster@dcswa.org
If you prefer paper mail, try writing to:
DCSWA
P.O. Box 19110
Washington DC 20036
Somebody collects mail from there, more or less regularly.