I hadn’t realized how much different search engines borrowed results from each other, but this Search Engine Relationship Chart (in PDF) shows that most of the ones you’ve heard of, and some you haven’t, are using or supplying results to each other. Apparently, Yahoo uses Google’s results, and almost everyone uses results from Overture, which requires sites to pay to be listed. [via BookPeople]
Glimpses of the websurfing habits of a computer science professor, obsessive crafter, occasional gamer, and all around geek