The document discusses changes to Facebook engagement that will take effect on March 30, 2012. [1] Key changes include saying goodbye to likegate apps and zero-interaction posts, and hello to content-led engagement with fans. [2] The changes will enhance the Facebook timeline and open new possibilities for engagement, such as using cover photos, pinning important posts, and highlighting events and offers. [3] Brands are encouraged to explore these new engagement tools to improve social interaction and visibility with customers.