Search Engines

BoldSearch
Provides premium and free listings for websites.
http://www.boldsearch.com/

BrainFox
Offers low initial bid prices and no fees.
http://www.brainfox.com/

Enhance Interactive
Offers advertising through a network of hundreds of distribution partners, including Excite, EarthLink, and MSN.
http://www.enhance.com/

ePilot
A pay-per-click search engine that has partnerships with NetZero, DogPile and InfoSpace.
http://www.epilot.com/

GenieKnows.com
Pay per click search engine with an affiliate program.
http://www.genieknows.com/

GoClick
Targeted, high-volume website marketing.
http://www.goclick.com/

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/

Roar.com
Offers a category based search engine and advertising programs.
http://www.roar.com/

7Search
A pay-for-placement search engine that allows advertisers to bid on keywords. Feeds search results to a large network.
http://www.7search.com/

SearchBidz.com
Offer European advertisers the opportunities to bid on search terms and affiliate program.
http://www.searchbidz.com/

SearchenNetworks.com
Search engine mixes natural search, directory listings and ppc listings.
http://www.searchennetworks.com/

SearchFeed.com
Offers pay-per-click advertising via their categorized search engine, as well as affiliate partner programs.
http://www.searchfeed.com/