Directory of Search Engines and Search Networks

The following list of search engines and paid search networks provides resources for purchasing paid search impressions. Most of the providers below provide paid search on a cost-per-click basis. Click on the "Research traffic quality" link to do a web search on the quality of each site's traffic.

The "Big 3":
-- research traffic quality
Yahoo! Search Marketing (Overture) -- research traffic quality
MSN AdCenter -- research traffic quality

Other Notable Search Engines and Search Networks:
Miva -- research traffic quality
Kanoodle -- research traffic quality
Looksmart -- research traffic quality
Lycos Insite -- research traffic quality
Enhance Interactive -- research traffic quality
GoClick.com -- research traffic quality