Need to learn more about semantics and big data? Head to ESWC 2013 May 26th, 2013 to May 30th, 2013 in Montpellier, France. While there you can participate in the AI Mashup Challenge. Semantic Technology and Business 2103 (SemTechBiz) is in San Francisco June 2-5, 2013 and will also cover big data, security, and many other topics. If your conference budget still has a positive balance, STAIR’13: Semantic Technology and Information Retrieval 2013 is in Selangor, Malaysia August 28-29, 2013.