Web pages are referred to as web sites, ftp servers as ftp sites, etc. Spamming is sending the same message to a large number of users, usually to advertise something. Often refers to the tendency to wander, straying from your original intent because you followed a link to some other interesting subject. Also refers to Internet use in general. If you create web pages offline, you have to upload them to your web site.
Real addresses are simpy numbers.
The most popular web browsers right now are Netscape Navigator and Internet Explorer. It is becoming common usage to use this phrase to include the Internet as a whole.