Rock & Roll Hotel. Of course, there are the standard fare happy hours, brewer meet & greets, and beer dinner pairings through out the week. They've also added some novel events like the Cherry Blossom Craft Beer Cruise on August 22nd.
We've been having trouble viewing the DC Beer Week Web site, which could be do to our IT incompetence. Absent the Web site, you can start planning your week by checking out this Washington CityPaper article. You can also find events information on their Facebook page, twitter feed, or on the DC Beer Events calendar. So basically you have no excuses for not finding something to do between August 20th and 28th.
Hope everybody inside the Beltway is getting thirsty.