SEO Resources: Landing page testing and PPC solutions

These resources can help you learn more about landing page testing and PPC solutions:

Did-it.com
Offers Trusted Feed services for Inktomi, Alta Vista, Teoma and Fast with a heavy emphasis on conversion metrics.

Position Technologies
Offers pay-for-inclusion services for Inktomi and Fast

Marketleap
Offers Inktomi Search Submit (pay-for-inclusion)

Increasing your Pay-Per-Click Profits Through Testing
Discusses techniques for testing your PPC ad copy

ProposalKit.com Grows Online Sales 50% by Revising its Landing Page Design
Wondering if testing can really increase profits? Check out this article, originally published in MarketingSherpa