Only sponsoring companies may advertise within 1 kilometer of London’s Olympic Park. Strict policing of the restriction is angering some local firms.

Olympic host cities get a huge windfall of tax revenues and tourist dollars, right? Freakonomics looks at the effect the games really have on a host city.

Long-distance runner Nick Symmonds talks about why he thinks the Olympics sponsorship model is flawed.

But is there a risk negative ads will turn off viewers?

The 2012 Olympic Games begin in London on Friday, but already a venerable Olympic sport is well underway: The Brits are arguing about the costs and benefits of an event which has so far set them back at least $15 billion.

The London Olympics will put Britain's capital in the spotlight, but some wonder how much of a payoff the Games bring in the long-term.

When the Olympics start next week in London, there will be, of course, winners and losers among the athletes. There will also be, outside Olympic Park in the East End of London, no small competition among businesses.