Microsoft , a massive computer software company and an investor in Facebook , has thousands of engineers , Zuckerberg pointed out ; Facebook has fewer , and is therefore seen by developers as a more effective and attractive employer , he said . Facebook CEO Mark Zuckerberg called ` ` underdogs '' and entrepreneurs . Apple and Google have struggled to make apps that work well with Facebook . Small companies can freely build apps that work with Facebook .
Facebook CEO Mark Zuckerberg called ` ` underdogs '' and entrepreneurs . Apple and Google have struggled to make apps that work well with Facebook . Small companies can freely build apps that work with Facebook .