-
About Social Media Today
-
The world's best thinkers on energy & climate
-
The world's best thinkers on the urban future
-
The world's best thinkers on business intelligence & data analytics
-
The world's best thinkers on the healthy enterprise
-
The world's best thinkers on healthcare
-
The world's best thinkers on e-government and open democracy
-
The world's best thinkers on social media
Comments by Jim Estill 
On This Guy Gets the Basics of Social Media ROI
I wish we really could measure ROI in marketing but alas - we fool ourselves if we think we can.