There are thousands of mailing lists on a variety of topics which you can join through an e-mail account. A faster modem is one of the contributing factors to the speed with which you can use the Internet. Informal rules of conduct on the Internet. These are simple considerations that will be appreciated by others. A small piece of software that adds special features to a larger piece of software.
Common examples are plug-ins for Internet browsers.
A Point of Presence usually means a city or location where a network can be connected to, often with dial up phone lines. Post Office Protocol refers to the way e-mail software such as Eudora gets mail from a mail server. When you obtain a SLIP, PPP, or shell account you almost always get a POP account with it, which you your e-mail software to use to get your mail. Most Internet communication is based on various protocols. A Web search tool, index, or database of sites.