A Reason Why Facebook Viral Channels Could Make a Comeback in 2011

Over the course of the last four years, Facebook has made a series of changes to its “viral” communication channels to try to find the right balance between providing distribution opportunities for developers and creating the most engaging user experience.

In the beginning, Facebook’s communication channels – invitations, notifications, and the news feed – were very open and ungoverned, and developers fought for growth and retention by sending a lot of messages through those channels. Over time, Facebook added

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