“Get off your index and build your Rolodex,” read the invite to last night’s Data BBQ in Washington, D.C.

And last night, that’s exactly what over a hundred people from around D.C.’s growing tech scene did, spilling out of the revamped officers of Insomniac Design in Bladgen Alley, near Mount Vernon Square.

The crowd was leavened with many attendees from the ongoing mHealth Summit 2010, manyof DC’s open data geeks and supporters and. Expert Labs’ Gina Trapani and Waxy.org’s Andy Baio came by from the FCC’s Open Developer Day to mix and mingle too. The highlight of the Data BBQ was the lightning talks, where attendees pitched projects, ideas, jobs or even spare rooms to the crowd. The talks are embedded below:

Many of the mHealth conferees no doubt know about the Health 2.0 Developer Challenge from the Department of Health and Human Services, where health data is being mashed up into new applications.

And, judging by the show of hands, many of the Data BBQ’ers had also heard about the World Bank’s Global Apps for Development Competition, which is looking to the development and practitioner communities to create innovative apps using World Bank data.

What might have been new to a few, at least, was the upcoming Apps for Army competition for the public, where the successful apps competition that Peter Corbett and iStrategy Labs helped the Army run will be rebooted for wider participation.