"apparently trivial uses and features of SNS actually play an important role in setting the social and informational context of the rest of the conversation"

Radovanovic, D. & Ragnedda, M. (2012). Small talk in the digital age: Making sense of phatic posts. In Proceedings of the #MSM2012 Workshop. 16 April 2012, Lyon, France.

pdf

A great position paper about how our apparent nonsense on twitter and facebook actually serves an important social function.