Internet	A global connected computer network in which any information can be transferred, distributed, or obtained instantly in electronic or digital form through optical fiber lines, satellites, or other high tech medium, around the world 24 hours a day, 365 days a year.
E-Mail:	Using the Internet as the passage way, the user can send electronic mail from on site to another in a matter of seconds.
Mailing List:	Mailing lists are e-mail-based discussion groups. Instead of being sent to an individual on the list, E-mails are sent to a central ListServ address first, then they are distributed to everyone who subscribes to the list.
Usenet News:	It is a distributed commuter information service similar to Mailing Lists, using a different set of programs to send and receive messages. It is more organized.
FTP (File Transferring Protocol):	It is a tool for transferring files between computers on the Internet.
Telnet:	It is a tool to allow one to log onto remote computers, access public files and databases.
Gopher:	It is a tool to enable the user to browse Internet resources. Typically, one can navigate the Internet using Gopher by selecting the desired item from a series of lists. User can then continue in a series of lists until you locate the information you are seeking.
World Wide Web (WWW):	While Gopher is a menu-based approach to browsing the Internet, the WWW offers an innovative alternative. WWW enables user to browse the Internet by using a hypertext series of links (similar to Windows Help file), completed with artistic graphical representations. When one selects a hypertext link, one may move to a computer within the same location or to another computer thousands of miles ways to browse that information.
Wide Area Information Server (WAIS):	WAIS is a system to search Internet databases. User can do a keyword search using WAIS to retrieve all of the matching documents and read them.