On Wednesday, Newt Gingrich's campaign released a television ad portraying Mr Romney as constantly having switching his views on abortion.

BBC: Romney heads to South Carolina after New Hampshire win

Its algorithms can suggest the best price to bid for keywords, based on where the ad will appear on the results page and how many other bidders are present, factoring in constantly changing auction prices.

FORBES: The Keyword Keeper

For Intel (nasdaq: INTC - news - people ), which has for years marched relentlessly down the performance road--constantly boosting the performance of its chips by boosting raw clock speeds and then letting the marketing department brag about it ad nauseum--it's a significant switch in strategy.

FORBES: Magazine Article