Several of my talks are available online:
"An introduction to embedded contact homology" is an expository talk which could be of interest to researchers wanting to know more about embedded contact homology. Here is a talk on my joint work about volume in Seiberg-Witten theory and the existence of two Reeb orbits. Here is a talk I gave on my work on symplectic embeddings of toric domains. Here is a talk on my joint work on higher dimensional symplectic embedding problems. And here is a short talk I gave about some problems in three-dimensional Reeb dynamics.
Here are some slides from powerpoint presentations that I've given (many of these are for the talks above):
"What can symplectic geometry tell us about Hamiltonian dynamics?" (From a presentation at an applied math seminar)
"Counting lattice points in triangles and the "Fibonacci staircase"" (For a talk at an undergraduate seminar)