Search Indiana University
Internet Search Engines
Single search engines crawl the web, building a very, very large database of all the pages it's seen. Results are ranked according to complex database calculations.
Aggregate Search Engines
These search engines utilize the results from a number of different single search engines. This can provide a better composite output, but it loses the ability to rank the results as effectively as if you were to use a single search engine.
Search Engine Comparison Data
Search Engine Features Chart by Search Engine Showdown
This chart shows a tabular comparison of Google, Yahoo!, Ask, Windows Live® Search, Gigablast, Exalead, and WiseNut.
Best Search Tools Chart
This chart shows a similar but more detailed comparison of various search engines.
The Best Search Engines
Detailed instructions on effective search engine usage.
Web Search Engine Comparison Chart
This one is similar to the other ones
