2007 saw the definition of advertising broaden, while the arrival of the iPhone presages a new battle for consumers. Simon Waterfall, co-founder of London ad agency Poke, shares the view from Europe

Usama Fayyad is helping the Internet giant figure out how to harness the massive amount of data it collects in ways that profit advertisers and protect Web users

Mobile advertising revenues aren’t growing as fast as expected, and that could spell trouble for a bunch of venture-funded startups

Advances in chip design are prompting companies to take advantage of the potential power. But the necessary new markets and software are lagging

The Google-owned video-sharing service is conspicuous by its absence in the mainland, and Chinese often have trouble seeing the U.S. site

Online ad service AdButterfly treats advertisers and bloggers as equals, letting marketers pick blogs—and bloggers choose what gets posted

The two American exchanges are opening offices in Beijing as Asian markets give them some tough competition for Chinese stock listings

An L.A.-area company and ESPN offer college football fans the chance to create their own national championship playoffs online if they’re not thrilled with the bowls

EBay may be more apt to sell the online phone service if new initiatives, including a digital-content push and a potential social network, aren’t successful

How the privately held, rapidly growing company is rewriting the rules on auto "buff books"