Here is Internet Index #22 and the directory of all editions.
Estimated number of web users in the U.S.: 57,037,000
Source: Relevant Knowledge
Cost of the 1997 Statistical Abstract of the United States (hardcover book), in dollars: 39
Cost of the 1997 Statistical Abstract of the United States (CD-ROM, with links to Internet sites for updates), in dollars: 50
Source: U.S. Census Bureau
Expected year that the U.S. Census Bureau will use the Internet for the census: 2010
Source: St. Petersburg Times, 6 April 1998, reported in Edupage
Number of time servers operated by the U.S. National Institute of Standards and Technology: 7
Source: NIST
Number of Vanderbilt students who worked on Muhammad Ali's web site: 5
Source: Vanderbilt Project 2000
Estimated number of web pages, as of April, 1998, in millions: 320
Source: New York Times, 9 April 1998
Number of live Internet chats with Koko the gorilla: 1
Source: Envirolink
Number of gopher requests to the InterNIC registration services
during February, 1998: 71,744
Number of phone calls to the InterNIC registration services
during February, 1998: 40,476
Number of WWW requests to the InterNIC registration services
during February, 1998: 17,091,774
Number of terrorist attacks in 1997 using the Internet: 1
Source: U.S. Department of State, "Patterns of Global Terrorism: 1997"
Percentage of U.S. government agencies rated as being in full compliance with the Electronic Freedom of Information Act: 0
Source: OMB Watch
Percentage of articles listing e-mail addresses for authors in the May, 1998, issue of the Red Herring: 100
Percentage of letters to the editor with e-mail addresses in the same issue: 100
Source: The Red Herring, May, 1998
Number of Internet service providers in Saudi Arabia: 0
Source: CNET
Estimated cost to businesses in Britain and Ireland of dealing with spam e-mail, in billions of dollars: 8
Source: ComputerWorld, 29 April 1998
Percentage of chopsticks labeled with URLs at one Mary Chung's lunch: 12.5
Source: Mary Chung's restaurant, Cambridge, MA, 8 April 98
Number of dogs I know with a URL on her name tag: 1
Source: Aster
To subscribe to future issues of the Internet Index, send a message saying "subscribe" in the body to internet-index-request@openmarket.com.