Eventually, automated ad sales could bring down the price of ads, as an auction system lets bidders set their price.

WSJ: Auction System Helps Place Digital Outdoor Ads

The patent was first spotted by NeoGAF users and in the example shown within, a racing game slows down and eventually stops to show an ad for soda.

FORBES: Sony Files Patent that Would Pause Games to Show Ads

Mobile will contribute more to both banner and search ad spending, and eventually to video, too.

FORBES: Online Ad Spending Jumps, Led By Video and Facebook

This may be the single most important issue and it lies at the heart of why the LTV model eventually breaks down and fails to scale ad infinitum.

FORBES: The Dangerous Seduction of the Lifetime Value (LTV) Formula

Ad experts predict that consumers will eventually call the product the iPad 3.

WSJ: Why Doesn't the New iPad Have a Name?

Eventually she was moved around the country where she attended ad-hoc schools.

CNN: Pakistan's Malala: Global symbol, but still just a kid

Second, because display ads drive consumers down the funnel so that they click more on search ads and eventually become a customer, this process also increases overall ad cost due to additional search clicks.

FORBES: Search vs. Display Advertising: Which Promises More Bang for the Buck?

Others in the advertising industry fear that when the economy does eventually pick up, the old link between GDP and ad spending will prove to have been broken, because the cyclical downturn will have accelerated several structural trends that were already hurting conventional advertising.

ECONOMIST: The recession in advertising

In a recent "behind the scenes" video of Lenovo's upcoming P780 ad campaign, the NBA star is seen bouncing a basketball around for a while before he eventually starts talking.

ENGADGET