Comparaison

Information	Comment	Alenty degrees	Forums	Technorati, Feedburner...	Venyo, Spotback...
Links	Articles writen "about of"	X		X
Audience (number of readers)	does not take into account the quality of the readers	X		X
Writing (number of contributions)	Gives more exposure to the old members, not the most relevant ones	X	X
Grades (stars...)	Take only into account these who make the effort of voting	X			X
Weight of the other members	My weight depends on the weight of the ones I read, who read me, who give grades to my articles....	X
Passive members	99% of members are only reading	X		X

Read also these articles (in french) in Alenty's blog:

• http://www.alenty.com/xwiki/bin/view/Blog/LaPertinenceLesContributions
• http://www.alenty.com/xwiki/bin/view/Blog/LaPertinenceLAudience
• http://www.alenty.com/xwiki/bin/view/Blog/LaPertinenceLesVotes