When you start working with Social Media Marketing you need to measure it somehow. All sites and statistics need a place or category. It just makes it easier to find or gather together. Danny Sullivan (Guru) made his categorization on his blog. Here hare his subcategories of Social Media • Social News Sites • Social Bookmarking Sites • Social Networking • Social Knowledge • Social Sharing National Geographic’s subcategories of Social Media are quite similar • Social News Sites Digg Reddit Twitter Slashdot Jaiku • Social Bookmarking Sites StumbleUpon Diigo Delicious Meneame.net Propeller.com • Social Networking Facebook MySpace Orkut Care2 • Social Knowledge Wikipedia Yahoo Answers Squidoo Ask Metafilter • Social Media Sharing YouTube Flickr Tumblr DevianArt Recently I made my own categorization of Social Media and it looks like this. • Social Aggregators/Pushers Ping.fm Friendfeed Hello.txt Popurls Posterous Utterli Disqus • Social Bookmarking/Link sharing Diigo Delicious StumbleUpon Mister Wong Yahoo! Bookmarks • Social Collaboration Acrobat Skype • Social Experience Reporting Flixter Digg Reddit Yelp • Social Location Blogloc Fire Eagle IRL Connect Loki Plazes Tripit • Social Media News Chirps Jaiku Koornk Plurk Twitter Wordpress Blogger Xanga • Social Media Sharing 23 72 Photos Bebo.com Blip.tv Buzznet Drop.io Dropshots Fliggo Moblog Twitpic Viddler.com YouTube Zoomin • Social Live Broadcast Ustream Bambuser I will continue to work on my categories and post changes after evaluation. You can also look at the well known “The Coversation Prism” categorys Image address http://farm4.static.flickr.com/3009/2735401175_fcdcd0da03.jpg?v=0 Brians blog http://www.briansolis.com/2008/08/introducing-conversation-prism/