A widely used, yet virtually undetectable, means of tracking people's Internet surfing habits is joining its better-known cousin, the cookie, as the subject of several lawsuits and a privacy initiative by the government.

Although DoubleClick is the undisputed leader in the Internet advertising space, speculation that it could lose its ad-serving customer base has sent the stock plummeting.

While the planners figure out where your clients' ads should run, the coordinators are the unsung heroes of agency media departments. Tom Hespos tells what you can do to help them retain their sanity.

Does spending 61% of company revenues on sales and marketing sound excessive? Only one year ago some firms were spending an average of 83%.

Yahoo Europe said on Wednesday it was better protected than its U.S. parent against any downturn in advertising as a cash drought parches weaker dot-com companies.

So what do you do if after running a campaign for a few weeks, the data reveal that the effort is tanking?

The Internet industry reeks of fear, and no amount of air freshener can cover up the odor.

Though the internet is still quite young, the convergence debate seems as old as the hills: In the perfect tomorrow, either the TV set or the PC will become the pipe through which all entertainment and information flows. What's your bet, TV or PC? And pla

Last month, the major online movie-ticketing companies followed the lead of so many other dot-coms and declared that they'll now give their product away for free.

Amid the hype about "Survivor" and other reality shows, it was Jesus Christ who quietly proved a formidable presence in the television ratings last week.