Google Advertising
Allows you to buy advertising on the Google search engine, or on other sites through its AdSense program. Includes a tour and FAQ.
http://www.google.com/ads/
Kanoodle
Distributes results to a large network of other search engines and search box providers
http://www.Kanoodle.com
Search Engine Watch
Danny Sullivan's comprehensive coverage of the search engine world. Forums, reviews, articles, ratings, and frequent newsletters. Paying members receive access to extra content.
http://searchenginewatch.com/
