Ben Edelman evaluates DNS, Google, and RealNames for their respective accuracies in providing correct and relevant content. Research suggests that Google offers the highest accuracy. http://cyber.law.harvard.edu/people/edelman/DNS-as-search/
Provides unbranded search results from the top five search engines. You can then vote on the one you find the most relevant. All users' votes are aggregated and provided in a pie chart showing voting distribution after you vote. http://www.searchenginechallenge.com