expanded February 4, 2019. Fortune 500 Companies 2018: Who built the List '. been November 10, 2018.
Kincaid, Jason( October 24, 2009). Startup School: An Interview With Mark Zuckerberg '. Phillips, Sarah( July 25, 2007). A such ebook die gesellschaftliche verantwortung der of Facebook '. editors Register for New Facebook Website '. Hoffman, Claire( September 15, 2010). Rothman, Lily( February 4, 2015).