As discussed many times this year will be remarkable year for no.5 as 2012 adds to 5.
Mark Zuckerberg is no.5(14 may 1984) also his sun sign is taurus which is partially ruled by 2 too.
He is running in his lucky 29th(2) year.
Mark Zuckerberg‘s good week just got better.As he married longtime girlfriend Priscilla Chan. 
Mark Zuckerberg his name adds to 46(1) which is powerful & very lucky no. of sun which stands for leadership.