This list was started in May 2009, and is incomplete for dates before that. It is probably incomplete for dates after that as well, since I'm sure to forget to update this list at some point.

May 14, 2009 - Magnificent Universe: Past, Present, and Future Discoveries from Hubble, Baltimore City Schools science teachers, Baltimore, MD

May 12, 2009 - Hubble's Greatest Hits, NASA INSPIRE online chat with tenth grade students

May 8, 2009 - It's Not Your Parents' Solar System, Katherine Delmar Burke School, First and Third Grades, San Francisco, CA

May 8, 2009 - Advances in SPH Rendering and Galaxy Collisions, Astronomy Visualization 2009 Conference, California Academy of Sciences, San Francisco, CA

May 7, 2009 - Magnificent Universe: Past, Present, and Future Discoveries from Hubble, NightLife event at the California Academy of Sciences, San Francisco, CA

April 25, 2009 - VIsions of Orion: from Galileo to Hubble, Shooting for the Stars webcast for Boy Scout Camporee at Camp Durant, NC