Google, Yahoo/Overture, and now Kanoodle
The fast-growing paid listings search market attracts a new competitor according to this Wall Street Journal story (subscription required):
Kanoodle's Mr. Keating calls his site "probably the biggest search engine you've never heard of." He said Kanoodle provided paid-search listings for about one billion searches last month, up from 300 million a year earlier, and has about 17,000 advertisers -- about a tenth the size of Google's and Yahoo's advertiser stables. He added that the site has increased revenue for 17 straight quarters.