E3

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The E3 Media and Business Summit (formerly known as Electronic Entertainment Expo) and commonly known as E3, is an annual trade show for the computer and video games industry presented by the Entertainment Software Association (ESA). It is used by many video game developers to show off their upcoming games and game-related hardware.

E3 is invitation-only since 2007, reducing the amount of attendees from 60,000 at E3 2006 to the 3,000-5,000 of E3 2007. A separate conference called Entertainment for All Expo has been created to accommodate the public demand for a major, annual video game event.

taken from Wikipedia