A01 chaf6542 06 se fm indd

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Mobile Products. Facebook is seeking to make 

these more engaging and more easily available. By 

the end of 2012 Facebook had more than 680 mil‑

lion average monthly users of mobile services. The 

acquisition of photo sharing app Instagram in 

August 2012 was part of this strategy.

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Facebook Platform. Facebook notes the importance 

of developing an open system through apps and web‑

sites built by developers using the Facebook Platform, 

including Application Programming Interfaces (API) 

and Social Plugins (for example, Like and Share but‑

tons) to help integration with other services such as 

websites. The Facebook Platform was introduced in 

2007 and by January 2008, over 18,000 applications 

had been built on it, with 140 new applications added 

per day. More than 95% of Facebook members 

have used at least one application built on Facebook 

Platform. Facebook Platform for mobile applica‑

tions was launched in October 2007, although many 

Facebook users already interacted with their friends 

through mobile phones