Companies like Google, Yahoo and Microsoft let advertisers buy ads in the milliseconds between the time someone enters a site’s Web address and the moment the page appears.
HP, known to consumers mostly as a printer specialist, is seeking to recast itself as a broader tech company with a new ad campaign featuring rapper Dr. Dre, comedian Rhys Darby and the slogan "Lets Do Amazing."
Some of the worst in the Center for Science in the Public Interest study were Denny’s; Lucasfilms, which partners with McDonald's; and Topps, which markets a miniature candy baby bottle, eaten by dipping a candy nipple in a sugary powder and licking it off.
In the largest settlement of its kind with the FTC and 35 states, the Arizona security company also agreed to stop making misleading claims and to improve the security of its customers' data.
The ad -- part of a series starring babies who play the stock market -- features a boy apologizing to his girlfriend via video chat for not calling her the night before. "And that milkaholic Lindsay wasn't over?" the baby girl asks him suspiciously.
Companies have been making viral videos for years, as a way to reach online audiences who don't pay attention to traditional ads. The latest: Reebok and two almost-naked athletes.
Bing ran a sponsored ad on FarmVille's main page that stated if players became Facebook "fans" of the brand, they'd receive three units of "Farm Cash" - which is the popular Zynga game's virtual currency. Before the ad launched on Tuesday, Bing had 117,000 "fans." The next morning, the number had exploded to 539,000.
The TV campaign will run solidly for a month and then in two-week bursts until mid-June. It will be backed by a digital campaign across Microsoft’s network and on media including social networking Websites.