Facebook continues to reign as the champ. And as the infographic points out, Facebook users are estimated to hold a higher value than users on other social networking sites. I think the key thing to remember here is that they are talking about value to Facebook, the company. From the marketer's perspective, the value comes from the behaviors of users on the site.
This graphic also demonstrates that consumers have a tolerance for how long they can engage on image sharing sites like Pinterest. I think much of this has to do with the fact that the concept of the site is relatively simple so there are limited ways to engage on the site at any one time.
Again, as a marketer it is more important to look at how users are behaving on the sites than how long. For example, according to a new study from Bizrate Insights, 32% of online shoppers have made a purchase based on what they’ve seen on Pinterest and other image-sharing sites.
