One of the things the World Wide Web is great for is sending messages to one another. These messages can come in many forms. Web pages contain messages of course but the communication is primarily from the web server to the user. If the user wants to send a message back to a webmaster, they usually use e-mail.
Check out Email-Report.com for the scoop on various emails used by individuals.
E-mail is great for sending messages of all kinds to anybody with an e-mail account, which is virtually everybody who can be connected to the Internet. In order to get connected to the Internet, you need an ISP or Internet Service Provider. Your Internet connection could be provided by your work or school, but most people are connected via ISPs.
You can pay for an e-mail program or you can get one free. There are advantages to both and you might want at least one of each. Below are lists of many to choose from and their features.
E-mail programs can also have other features such as address books and even calendars. You can communicate with many people, all at the same time, with Chat Rooms, or Newsgroups . There's even Instant Messaging which is similar to e-mail, only the receiver of the message, if they're online, sees the message appear instantly on their screen.