There’s a lot going on in the Washington, DC technology space this week with meetups on Node.js, nonprofit mapping, big data, SOPA, and more. Below is our roundup of the events, and you can find the full local calendar at DC Tech Events.

Monday, January 16

7:00–9:00 pm

NodeDC Meetup : Want to learn more about the high performance javascript engine that’s powering more and more data heavy sites and our set of MapBox tools? Come out for this meetup to learn more about node.js, see what’s being built with it, and meet local developers.

Tuesday, January 17

7:00 pm

Netsquared: Modern Mapping : We’re presenting at this month’s meetup talking about how nonprofits can use web maps to better communicate about their work, track operations, and connect people. We’ll also walk through how technical and non-technical users alike can go from a spreadsheet to an interactive web map in ten minutes using TileMill and MapBox tools.

Erlang Hack Night : Come out to hack on Erlang with other developers. This event will group two to three people of various coding levels together to address a common challenge while pair programming. It’s a great opportunity to improve your Erlang coding and grow the community.

Wednesday, January 18

10:00 am to Noon

Emergency DC Tech Meetup : There’s no doubt that if passed, SOPA will hugely impact the technology community. DC Tech is organizing people to go to the Hill to advocate against the measure.

6:30 pm

Big Data and Mongo DC Joint Meetup : The Big Data and Mongo meetup groups are teaming up this month with presentations on MongoDB and advice for monitoring big data systems.

Thursday, January 19

7:00 pm

ONA: Homicide Watch : This month ONA’s meetup will look at Homicide Watch, a website that covers every single homicide in Washington, DC from the criminal act until conviction. The site has received good attention for giving a voice to victims and for providing some of the most thorough crime coverage in the area.