Social Media Marketing (SMM)
A form of internet marketing which seeks to achieve branding and marketing communication goals through the participation in various social media networks (MySpace, Facebook, LinkedIn), social bookmarking (Digg, Stumbleupon), social media sharing (Flickr, YouTube), review/ratings sites (ePinions, BizRate), blogs, forums, news aggregators and virtual 3D networks (SecondLife, ActiveWorlds). Each social media site can be optimized to generate awareness or traffic.
Social Networking — Connecting With People on the World Wide Web
Social Networking is a community-based network of people with common interests.
Social Bookmarking — How to Find What Interests You
Social Bookmarking is an easy way to find topics that interest you. It also allows you to tag and review websites, news articles and blog entries.