About 500 people from 33 countries converged in Portland, Oregon, USA from August 12-16, 2012 for SIGIR 2012, the 35th Annual SIGIR Conference. The conference consisted of five days of papers, posters, demonstrations, tutorials, workshops, and social events focused on research and development in the area of information retrieval, also known as search. The conference brought together researchers, academic faculty, students, industry leaders, and others. Conference sponsors included some of the major names in search, as listed to the right. The proceedings are available in the ACM Digital Library.