Recent updates: CompletePlanet, dates of operation of protocols, explanatory text in left column, FTPplanet, Archie dead.
Each protocol used for information exchange on the Internet has defined an "information space" into which people contribute resources accessible in that protocol. Some of these information spaces have a list of servers available or search directories and keyword searchers. This table lists major resources for each information space and memorializes some protocols that have faded into history.
|Web (1990 - )||Subject||Keyword|
|Email (1971 - )||Topica PAML|
|FTP (1971 - )||Tile.net FTP list||FTPplanet||Archie (obsolete)|
|Usenet (1979 - )||News Feeds||FAQs||Google Groups|
|Telnet (1972 - )||Hytelnet (Hytelnet is now no longer being maintained; but Telnet is alive)|
|Finger (1977 - )||rarely used because of security concerns|
|Gopher (1991 - 2002)||rare operation by late 1990's; known site in 2002 at gopher://gopher.floodgap.com/1/world (searcher was called "Veronica")|
|WAIS (1991 - ?1997)||obsolete, no known operation|
|Proprietary Databases "Deep Web"||CompletePlanet|
|Find Files "Deep Web"||FindThatFile|