| Feb 2006 | IAS, Princeton NJ | Lie Groups, Representations and Discrete Math II |
| Feb 2006 | Yale University | Margulis 60th Birthday Conference |
| Mar 2006 | Columbia University | Kolchin Memorial Lecture (MacPherson) |
| April 2006 | Columbia University | John Morgan 60th Birthday Conference |
| May 2006 | CUNY Gradute Center | Combinatorial and Additive Number Theory |
| June 2006 | Columbia University | Automorphic Galois representations |
| Sept 2006 | Stanford University | Paul Cohen 72nd Birthday Conference |
| Sept 2006 | Columbia University | Ramanujan Panel Discussion |
| Oct 2006 | IAS, Princeton NJ | The L-Group at 40 |
| Dec 2006 | Ritt Lectures, Columbia Univ. | Andrei Okounkov |