Here in Maastricht, we have a regular short lecture series that is part of the Pecha Kucha family. Given all over the world at similar events, Pecha Kucha refers to a type of 6-minute lecture in which the speaker has 20 slides with 20 seconds per slide. Any and all topics can, and are, discussed. The only guide is that your idea be new or interesting.
At the most recent event Dan gave a talk about the creative process that brought him to Walking the Lethe and webcomics. Please take a look.