Good article in the WSJ about web advertising sales. Portal ads are in high demand again. But, it appears — this time — that the demand is well-founded.

Similar growth — and advertising backlogs — occurred during the dot-com boom during the 1990s, with online sales peaking at $8.1 billion in 2000. But advertisers and Web publishers say the resurgence bears fewer markings of a land grab and more evidence and better measurements of usage and what works online.

“In 1999, there was no research and people were chasing fear and greed,” says Greg Stuart, president of the Interactive Advertising Bureau. “Now there’s good data, plus marketers with their own real experience.”