Engagement - buzzword or vital ingredient for website success

Great blog post explaining "engagement" as a metric.

when people are saying engagement, they are really talking about satisfaction and loyalty. Which does mean that engagement is not a new buzzword or concept but instead it is something that has been around for as long as businesses have been. The difference between now and then is that in the online world, we can measure it.

Engagement is an attempt to use quantitative measures to understand satisfaction (using data that we already have), as opposed to having to rely on qualitative studies (data that we have to make an effort to acquire). Engagement is important and it should be used as an indicator of the performance of a website.