Saul Hansell authored this Bits Blog on the New York Times website on April 7, 2008.
Here's an excerpt:
"Of all the companies building advertising systems based on data gathered from Internet service providers, the one that is farthest along in the United States is NebuAd.
Robert Dykes, a long time Silicon Valley executive who started the company two years ago, says it has been up and running since last fall and will soon be monitoring the activities of 10 percent of Internet users in the country, mainly customers of small and medium Internet service providers." (emphasis added)
For the complete article, navigate to NebuAd Observes ‘Useful, but Innocuous’ Web Browsing.