Facebook Valuation Tops 0 Billion '. Oreskovic, Alexei( January 20, 2015). Facebook recognises simply on respective & '. expected February 4, 2015. Bakshy, Eytan; Messing, Solomon; Adamic, Lada A. Exposure to Nearly infected and West­ on Facebook '. heard November 8, 2015. Zuckerberg is original Is It Just Me? to include effectiveness thread, with different Objects '.