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 number 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, however it has not been able to replicate E3's success.
E3 was previously held in the third week of May of each year at the Los Angeles Convention Center (LACC) in Los Angeles. In 2007, the convention was exceptionally held from July 11 to July 13 in Santa Monica, California. The ESA stated that the event reached a record attendance of 70,000 people in 2005.
The first E3 was put on by the Interactive Digital Software Association (now the Entertainment Software Association). It coincided with the start of a new generation of consoles, with the release of the Sega Saturn, and the announcements of upcoming releases of the PlayStation, Virtual Boy and SNK's Neo*Geo CD. Specifications for the Nintendo Ultra 64 (later renamed Nintendo 64) were released, but there was no hardware shown.
The event ran from May 11 through May 13 1995 in Los Angeles, California. Keynote speakers included Sega of America, Inc. president and CEO Thomas Kalinske; Sony Electronic Publishing Company president Olaf Olafsson; and Nintendo chairman Howard Lincoln.
While E3 was noted as being noisy and busy, sound levels are not what they once were; in recent years (2005, 2006), publishers like EA have kept their sound down compared to years directly before. At one point, sound levels would fluctuate as exhibitors raised the volume to compete with near by stands. Shouting was common at some stands. Meanwhile, in 2006, when attendance was down to 10,000, according to the organizers, it was a planned move as industry accreditation was stringently checked.
Different booths would also invite celebrities over for signings for their specific games. For 2004, Activision brought in Stan Lee and Tony Hawk to promote X-Men Legends and Tony Hawk's Underground 2 respectively while Vivendi Universal brought in Vin Diesel to promote his new game The Chronicles of Riddick: Escape from Butcher Bay, a prequel to the summer 2004 film. Celebrities were generally only available for a few hours, so line-waiting was a general practice at E3.
The external apparatus that connects the bigger halls is the Concourse Hall and subsequently, the West Hall and South Hall lobbies. The lobbies were used for registration, picking up badges and badge holders, and other general information. Bag stands and the daily magazine were available in the lobbies. The lobbies were also the signature glass structures of the LACC and were massive structures.
The Concourse Hall generally featured four booths and a few media outlets as well as the Into the Pixel game art exhibition started at E3 2004. The Concourse Hall was generally used as a link between both lobbies and featured a window display with a beautiful view of downtown Los Angeles.
Gametrailers, Advanced Media Network and VGCore.com.On site, the event is covered by professional journalists from around the world. Proof of credentials are verified before the event or on-site. Originally E3 was almost entirely dominated by print games journalists, the event eventually came to include general and specialist TV crews, newspaper journalists, website journalists, and ‘fansite’ journalists. Many of these attendees came with consumer-level digital video and photograph cameras.
On behalf of the organizers, Future Publishing now publishes the free official daily magazine, named in 2006 as ‘The 2006 Official Show Daily’. Previously published by Ziff Davis under "SHOWDAILY", the magazine provides news, and maps of the show floor.
G4 has aired live coverage of E3 2005, 2006, 2007, and 2008 covering three hours a day over 4 days in the week of the event.
An episode of The Showbiz Show featured Andrew Daly getting live coverage from E3.
Although E3 was originally envisioned as an expo open only to game industry professionals, it has grown in recent years to include greater numbers of bloggers and attendees who were not industry professionals. Most of these bloggers were excluded from the revised event, as the ESA has announced that the new E3 will be by invitation only.
It was originally speculated that because of these changes, independent developers may have been excluded, and subsequently damaged, in preference for larger game companies. But the ESA ultimately provided invitations for independent developers with "The Indie Games Showcase" booth. This was made possible through industry supporters, IndieCade and the International Game Developers Association.
The move was widely criticized by those both within and outside the gaming industry
with the famous game designer Will Wright quoted as saying;
"It almost feels like a zombie at this point; it's the walking dead. It's such an abrupt end to what was E3, which had been this huge escalating arms race....Right now we're in this kind of dicey, do we have an event, what event is it, which one do we go to? I think we're in an uncomfortable transition zone when really the real E3 died a couple of years ago."

Significantly harmed because of this change is the city of Los Angeles, which previously experienced a huge economic boom from the large influx of gamers and industry employees during the event. One group that was clearly hit were taxi drivers, where drivers could have expected up to 50% increases in income during an E3 convention.
On January 5, 2007, IDG World Expo announced that the ESA had endorsed a consumer-oriented successor to E3 called Entertainment for All or E for All (which replaces the GamePro Expo name). The expo took place from October 18 through October 20, 2007 at the Los Angeles Convention Center to allow participating companies to sell their holiday releases to the attendees. The expo charged an entrance fee of USD $50 to $110, but attendance was no longer limited to video game developers, retailers, and media.
In many countries other than the US, several smaller expositions have arisen showcasing local talent and games production companies as well as many international companies.