Photo by Flickr user wolfkann.

ZUMBA: The D.C. libraries love Zumba. Join a free Zumba class at 7 p.m. in Eastern Market (403 7th Street SE) or at 7:30 p.m. at the Waterfront (900 Wesley Place SW)

BEER: Beer journalist and cookbook author John Holl leads a tasting of spring seasonal beers. Low Inventory Alert. Event will sell out. Hill Center at the Old Naval Hospital (921 Pennsylvania Avenue SE) 6:30 p.m. $25

WOMEN: If you are a woman in the tech industry, or want to network with one (guys included), join D.C. Web Women (DCWW) and Coder/Designer Keggers (CDK) for free pizza and drinks. Mellow Mushroom (2436 18th Street NW) 5:30-8 p.m. Free, but RSVP required.