The evolution of blogging and what adult blogs can learn from it
 

http://blog.postrank.com/2009/11/mea...web-2007-2009/

In absolute terms, when we sample over the top 1000 of the most engaging feeds for the past three years, we see approximately a 30% year over year growth in engagement ?- a sign that more people are participating in the social web. The ?share, and like this? phenomenon, which is sweeping through Facebook, Twitter, and dozens of other social hubs, are all facilitating this trend.

Interactivity is key!