Great resource for social media introduction

http://www.smashlab.com/papers/item/p/list6ItemID/v/3

White Paper: A Primer in Social Media

Executive Summary: Social media represents a broad change in how people communicate with one another. This is exciting for businesses as it presents new channels and methods of reaching consumers. As such, early adopters have encountered both successes and failures in developing strategies that incorporate this new paradigm. smashLAB advises groups to remain strategic and pragmatic in employing social media.