This is really great. Where have all these companies been? I've been in DC for almost 3 months now and I was preparing to move to SV because the startup community seemed non-existent and I hate working in a void. If I can find a startup that has a desk to rent so I can focus on my own project, or at least an enjoyable part-time gig, I might stick around.
This is precisely one reason why this site was built. To make sure people both inside and outside of the DC area knew of the entrepreneurial activity going on here and to encourage participation in the community.