Why Facebook's China adventure will need more than censorship to succeed

As social network reportedly develops tools to restrict users so the Communist party will let it in, some experts say it is 'light years' behind rivals already in place

Facebook needs to invest in more than just censorship tools if it hopes to lift a seven-year ban in China, experts say, amid a tightening space for foreign technology companies in the world's most populous nation.

Last week it emerged Facebook is working on software designed to suppress content - widely seen as a prerequisite to ending the ban, put in place in the wake of deadly ethnic riots in 2009 in attempt to quell the sharing of information about the violence.