Interested in connecting with developers about node.js, HTML5, or R? How about learning about the history of mapping Washington, DC, or seeing examples of women using technology to change the world? These are just some of the technology events happening this week in Washington, DC, with more of our picks listed in the roundup below.

Tuesday, May 15

7:00 pm

NetSquared Meetup: Cloud Reality Check : Want to know why the cloud is so talked about? Come out to this meetup for a run down on what the cloud is, what its benefits are, and how it can help you and your organization.

Wednesday, May 16

5:00 pm

DC HTML5 Meetup : This meetup will bring together developers using HTML5 to connect and hear presentations by other developers on what they’re working on and tricks they’ve learned along the way.

6:30 pm

Interesting Visualizations with R : The R users group is meeting this month to talk about different visualization techniques in R, including one talk from the Census on making choropleth maps in R.

7:00–9:00 pm

NodeDC Meetup : Looking for a fast, flexible, and scalable base for your next project? Node.js could be a good option. This meetup brings together local node.js developers to connect, talk shop, and learn through several short lightning talks.

Friday, May 18

All day (and Saturday)

Visualizing the Nation’s Capital: Two Centuries of Mapping Washington, D.C. : The Library of Congress is hosting this two day conference on the history of Washington, DC, the planning of the city, and how mapping it has evolved from Washington’s day to today.

All day

Change Your World Conference : This one day event will showcase ways that women are using technology to influence policy, effect government, communicate with citizens, advocate for social issues, and effectively help change the world. Come out to hear some great case studies and meet interesting people.

All day

Drupal Government Day : This all day event will look at how open source software — specifically but not only Drupal — can be implemented in the government to improve online tools, communication, and efficiencies.