Google built an empire delivering advertisements across the Internet, and now it plans to distribute content from media companies just as aggressively.

It also employs many carriers to deliver the paper and advertisements with it.

That information is used to deliver advertisements geared toward the Web surfers' personal interests.

She declined to speculate whether Google planned to pay for the service by delivering paid advertisements to users.

Thus far, the billboards can recognize age and gender and deliver demographically appropriate advertisements, but cannot discern individuals.

IBM is developing similar billboards, with plans to deliver customized advertisements to individuals who carry identity tags.

Mr. Griffin said his company profits by delivering advertisements to users of the software.

When he was to open at a location he found it advantageous deliver advertisements to every large house within a 6-mile radius of his location.

The company has services that include delivering dynamic advertisements to video games.

The program delivers advertisements, compares shopping results and other offers to users' computers, and tracks their browsing habits.