most engaged site) or only six minutes for Google+. Facebook's financial problems are because it hasn't been able to properly monetise that network. Historical revenues (which started rising after former Google executive Sheryl Sandberg was appointed in 2008) were largely derived from that overpriced display advertising (and a smaller part from partners such as Zynga who are also struggling). Instead, Facebook should have been focusing on how it can generate profits from transactional and search services provided to its captive audience. Facebook has unparalleled reach, especially through its news feed, to be able to create transactional services. That is has failed to capitalise on that is an indictment on the group's management, but let's not forget, before Adwords, Google didn't make much money either. (Facebook's attempts to monetise news feed posts have failed , and have caused users to lose faith in the business). Facebook's other great hope is the possibility that is can challenge Google in search? -- ?to do so, it would need to come up with more relevant results than Google based on the data provided by Facebook's own audience. This is, of course, easier said than done. And also questionable whether a peer-based search function would provide more relevant results that Google's credibility-based algorithms. If Facebook can challenge or even take some market share of Google's search supremacy, it will vindicate the lofty valuations that remain.