Introduction to writing spiders and agents
Type of web agents
   1. Spiders
        Automatically "browse" the Internet looking for, or recording, information
        Examples: Google.com, MySimon.com
   2. Bots/Worms
        "Infect" systems, perform some task and "infect\' other systems
        Examples: CodeRed virus and Morris Worm
   3. Hybrid Agents
        Examples: Internet Explorer, Netscape and the "I LUV YOU" virus