How has Facebook managed to leverage the advantages of network effects to enhance the value of its offerings? What are the features of Facebook’s incarnation as a platform?

Question: How has Facebook managed to leverage the advantages of network effects to enhance the value of its offerings? What are the features of Facebook’s incarnation as a platform? (Please see the link below, Facebook chapter is on Chapter 8)(Two page)

Instruction: 

1. Quality of your writing (grammar, spelling, essay structure...)
2. Quality of your argument (ATFQ, logic of response, thoroughness of answer...)
3. Specific references to the Gallaugher text, and class lectures (be specific, help the reader know your sources...)

Book on Facebook (Chapter 8): https://2012books.lardbucket.org/pdfs/getting-the-most-out-of-information-systems-a-managers-guide-v1.1.pdf