SEOSurvey: MSN's Beta Search vs. Yahoo! and Google
- An analysis of the search results for four sample searches.
- http://www.seomoz.org/article/msn-beta-vs-yahoo-google

How to Choose a Search Engine or Directory
- University librarian Laura Cohen gives advice in the format of "if you want A then choose B."
- http://www.internettutorials.net/choose.html

Search Engine Challenge
- 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

BBC: Search Wars - Which is the Best?
- As Microsoft enters the internet search engine market, the BBC compare five of the main providers: Google, Yahoo, MSN, Ask Jeeves and A9.
- http://news.bbc.co.uk/2/hi/uk_news/magazine/4003193.stm

DNS as a Search Engine: A Quantitative Evaluation
- 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/

Search Engines for the World Wide Web: A Comparative Study and Evaluation Methodology
- Comparison of AltaVista, Excite, and Lycos.
- http://www.asis.org/annual-96/ElectronicProceedings/chu.html

InFoPeople: Best Search Tools Chart
- Comparison of selected search engines and directories by content and features.
- http://www.infopeople.org/search/chart.html

PPC-Search Engines
- Publishes articles and news about pay per click search engines.
- http://www.ppc-searchengines.info/