Spam is a term used to describe unsolicited email sent to you, often by commercial firms that attempt to sell you goods and services. Spam is sent out as bulk email, often to lists of 10,000 or more people at once. It's inexpensive to send, so its use has exploded on the Internet to the point where it is common for someone to get several dozen of these messages in a single day. Spam has become enough of an annoyance to warrant calls to ban it outright.
