Still, the campaign is not really a revenue driver.
In the longer term, the revenue driver will be emerging markets.
It remained, however, a big ratings and revenue driver for ITV1.
The US has become a big focus and major revenue driver for FTSE 100 defence company BAE Systems.
The largest revenue driver is gas, accounting for 72percentt of cash flow but only 35percentt of profit.
Sales of the company's multiple sclerosis drug Avonex, its lead revenue driver, rose 26percenttoto $573 million in the third quarter, while Tysabri sales reached $236 million worldwide.
Flickr is choosing to move slowly in its commons, which it doesn't see "as a revenue driver," said Kakul Srivastava, general manager of Flickr.
It also expects the film's domestic DVD release, scheduled for Nov. 13, to be the primary revenue driver for the fourth quarter.
But the big revenue driver has turned out to be a software product, Traffic Server, which Inktomi sells the old-fashioned way, in a shrink-wrapped box.
Yahoo's largest revenue driver is advertising.
