Summarizes landmark 1999 article from Nature magazine, estimating total size of the World Wide Web and the coverage of major search engines. Maintained by research scientists Steve Lawrence and Lee Giles, who conducted the original study. Compiled by the eMarketer online newsletter. Economic indicators based on research on over 2,600 US based companies that currently operate in the Internet Economy. An ongoing survey of more than 17 million host sites worldwide to measure market share of leading Web Server software.
Users can also enter a specific site address to determine the software being used there.