Internet service providers (e.g. Virgin Media, BT, Sky, EE)
Web hosting services (e.g. free hosts; Google Sites, Freespace; paid hosts; JimdoPro, Fasthosts, Freehostia.com)
domain names and structures
Web design software (e.g. Dreamweaver, WebPlus, CoffeeCup, FREE OpenSource - BlueGriffon ).
Web servers (e.g. IIS, Apache)
email servers (e.g. Icewarp)
proxy servers
routers
browsers (e.g. Internet Explorer, Mozilla Firefox, Google Chrome, Opera, Safari)
email applications (e.g. Microsoft Outlook, Google Mail, Windows Live Hotmail)
Internet Protocols (e.g. TCP/IP).