My Lectures on Geometric Langlands:

• Lecture notes and videos from the 2007 London Math Society Invited Lecture Series are available here.
• Lecture series Topological field theory and representation theory I-IV from the Workshop on Topological Field Theories at Northwestern University, May 2009. More notes from the workshop are available here.
• Topological Field Theory and Geometric Langlands: notes and audio and video from a lecture series at the KITP Santa Barbara workshop on Geometric Langlands and Gauge Theory, July 2009.
• Introduction to Geometric Langlands, notes from lecture at the Vienna workshop on Geometric Langlands and Physics, January 2007.
• Lectures from the Gottingen Winterschule on Geometric Langlands: Geometric function theory, Geometric Langlands and Topological Field Theory and Geometric Langlands and Real Groups.
• A three-part introduction to the geometric Langlands program I gave in 2002 is available on streaming video courtesy of MSRI: Geometric Class Field Theory, Quantization of Hitchin's Hamiltonians, and Factorization.
• The February 2005 Talbot workshop (for which I was the plenary speaker) provided an intense "Geometric Langlands retreat" for graduate students. There are notes available as one huge file or as individual pages courtesy of Megumi Harada.
• What's the deal with Geometric Langlands?: lecture notes taken by Parker Lowrey for a talk I gave at the Algebraic Geometry Boot Camp, a warmup workshop for graduate students attending the 2005 AMS Summer Institute in Algebraic Geometry, Seattle.
• The Geometric Langlands Program, audio for a lecture I gave at the Workshop on Forms of Homotopy Theory: Elliptic Cohomology and Loop Spaces at the Fields Institute in Toronto, 2004.