We are very proud to welcome the 2012 Second Language Research Forum to Pittsburgh, PA. Pittsburgh is known as the "City of Bridges", and we hope to use this idea to highlight the bridges that exist between the various disciplines involved in SLA research. SLRF 2012 will build on this theme with the aim of bridging gaps between individual disciplines that all share a common goal: to improve our understanding of second language learning, acquisition, instruction, and use. This conference will highlight the strengths of each discipline while providing a platform for an open dialogue between fields. To this end, we are inviting proposals for papers and colloquia from any field of study that addresses SLA.