Definition of Rating:
For organizations without heavy technological knowledge background or any organization in a hurry, the complexity of creating and implementing these technologies is a major consideration. On the flip side, however, greater complexity often leads to greater control and customization. This is an essential tradeoff when picking a participatory technology.


Rating Scale:
* The site is there, all you have to do is register and upload, single set template
** More variables required, such as creating profiles, picking templates, etc.
*** Significant coding or other time investment involved

Category	PMCA	Rating
Multi-Media Sharing		*
	Flickr.com	*
	YouTube.com	*
	.mac	** - ***
	Veoh.com	**
	Blip.tv	*
Social Networking		* - **
	Facebook.com	* - **
	MySpace.com	* - **
	Friendster.com	* - **
	Ning.com	* - **
	Twitter.com	* - **
Blogging, Vlogging, Vcasting, and Podcasting		**
	Blogger.com	**
	Livejournal.com	**
	Wordpress	**
Wiki		** - ***
	Wikipedia	**
	Wetpaint	**
	PBWiki	**
	MediaWiki	***
	Socialtext	***
Social Bookmarking		*
	del.icio.us	*
	digg.com	*
RSS		*-**
	web-based	*
	client-based	**
Virtual Worlds		***
	Second Life	***
	there.com	***
	Koneva	***