Key Terms
add-on message Advanced Research Project Agency Network (ARPANET) metasearch utility agents nanomanipulator applets newsgroup auction house sites off-line browser bots online service provider browser packet carders person-to-person auction site Center for European Nuclear Research (CERN) plug-in channel point-to-point protocol (PPP) chat group proxy server commerce servers provider cybercash pull product cyberspace push product digital cash search engines domain code search tools domain name serial line Internet protocol (SLIP) domain name system (DNS) signature line downloading spider e-cash subscription address e-commerce surfing electronic cash Telnet electronic commerce terminal connection extranet TCP/IP file transfer protocol (FTP) uniform resource locator (URL) filter uploading firewall UseNet Gopher user name Gopher site vertical portal header Web helper application Web auction home page Web broadcaster horizontal portal Web crawler host computer Web directory hyperlinks Web-downloading utility Hypertext Markup Language (HTML) Web page Internet Relay Chat (IRC) Web portal indexes Web site information pusher Web spider instant messaging Web storefront Internet Service Provider (ISP) Web storefront creation package intranet World Wide Web Java WWW list address lurking mailing list