The second or third largest hotel on earth, depending how you count, the MGM Grand is a true Las Vegas icon: the city's largest hotel, a major concert and sporting event venue, full of nightlife and entertainment options and celebrity chef restaurants, including arguably the nation's single best fine dining spot, the 3-Michelin starred, Forbes 5-Star, Joel Robuchon.

FORBES: MGM Grand, Las Vegas

Game Over, a game, tech and entertainment news show and Celebrity Assassin, a show that allows celebrities to show off their gaming skills.

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As celebrity weeklies are forced to compete with a growing number of entertainment shows and tabloid-style blogs to chronicle the minutia of celebrity life, the price tags associated with these types of private moments have skyrocketed.

FORBES: The Most Expensive Celebrity Baby Photos

Ryan Schinman, founder and chief executive of Platinum Rye Entertainment, the world's largest broker of celebrity talent, models, recording artists, sports figures and other celebrities for ad campaigns and p.r. events, says the stigma that once kept Hollywood's A-list from promoting goods is all but nonexistent today.

FORBES: Welcome to Shillville

Up pops celebrity news from more than a hundred sources, IMDB and Wikipedia integration and social feeds when you scan an entertainment show.

FORBES: Connect

The Celebrity 100 is based on entertainment-related earnings plus media visibility (exposure in print, television, radio and online).

FORBES: Celebrity 100: How We Create The List