Book excerpt: A slick, encyclopedic guide to the 2,000 active games available online. This book is completely illustrated, cross-referenced, and formatted for easy use--with a unique rating system that lets users pre-screen their options, experiment with new games, and save time and money. Entries include a description of the featured game, listings of game sites and addresses, playing instructions, strategy tips, and visual images from the nets. (Communications /Networking)