I put together an interactive visualization on the US banking system in December of 2013. I have to say I'm really happy with how it came out. I learned a lot while putting the map together and I'm looking forward to doing more with it now that I have built a pretty solid foundation of code.
I did an analysis of revenue and employees for companies in 3 industries of the Inc. 5000 in October 2013. The interactive chart got a little attention on Hacker News and made the front page (top 10) which was exciting.
European Languages: In June 2012 I did a quick study on the relationships between European Languages using d3.
NYC Dance Census: I helped crunch numbers for the first ever census of young dancers with volunteers from Bloustein Center for Survey Research (BCSR) at Rutgers University’s Edward J. Bloustein School of Planning and Public Policy.
NYC Health Grades: After getting food poisoning in late 2011, I put together the health grade histories of NYC restaurants using Tableau. This is not maintained.