From Wikipedia:

"Pecha Kucha (ペチャクチャ), usually pronounced in three syllables like "pe-chak-cha", is a presentation format in which content can be easily, efficiently and informally shown, usually at a public event designed for that purpose. Under the format, a presenter shows 20 images for 20 seconds apiece, for a total time of 6 minutes, 40 seconds.

It was devised in 2003 by Tokyo's Klein-Dytham Architecture (KDa), who sought to give young designers a venue to meet, network, and show their work and to attract people to their experimental event space downtown Tokyo. They devised a format that kept presentations very concise in order to encourage audience attention and increase the number of presenters within the course of one night. They took the name Pecha Kucha from a Japanese term for the sound of conversation ("chit-chat"). Pecha Kucha, has spread virally around the world. More than 220 cities now host such events."

PechaKuchaNight.com organizes private PechaKucha-inspired events at the Spoke Club. There is no money involved.