Every year, the Wikimedia community (the people who run Wikipedia, and its sister projects) hold an international conference. Last year it was in London (pictured), and I was lucky enough to attend that, and the 2012 event in Washington DC. I gave talks at both. This year, it will be held in Mexico , and I hope to attend. I've proposed giving a talk there, " Chemical collaborations ", about my work as Wikimedian in Residence at the Royal Society of ...