On Yahoo! News, Carl Bialik of the WSJ talks about the healthy state of online advertising industry. According to the Interactive Advertising Bureau, second-quarter online-ad sales were $1.66 billion, up 14% from a year earlier and 1.7% from the previous quarter.
The article talks also about formats, saying that paid-search ads are rising, while banners are slowing down. However it's interesting to read the opinion on the matter of Pete Petrusky, director of new media for PricewaterhouseCoopers:

I think it's due in large part to advertising mediums such as Overture, Google AdWords and Google AdSense. These are highly targetted, trackable return-on-investment systems that make it easy to know exactly what you're spending and how much it's making you. With that kind of information, as a marketer I can't go wrong.

Posted by: jonathan at March 30, 2004 10:46 PM