Social networks over priced?

From David Heinemeier's posts:
http://37signals.com/svn/posts/2585-facebook-is-not-worth-33000000000

GM Says Facebook Ads Don't Work, Pulls $10 Million Account: http://www.forbes.com/sites/joannmuller/2012/05/15/gm-says-facebook-ads-dont-work-pulls-10-million-account/

A bit of reality:

• Free and open source software used from LFT's network: (a) Wall Street (NY stock exchange) moved to to GNU-Linux software ( http://www.itworld.com/open-source/193823/how-linux-mastered-wall-street) and http://www.lftaustralia.com/linux-and-the-financial-crisis/ ; 
• Spain will save $40m /year http://www.lftaustralia.com/spains-extremadura-moves-40000-pcs-to-linux/ ; "This is now classified as the second largest open source desktop migration project in Europe, between French Gendarmerie's 90,000 desktops and the 14,000 desktops of German's Munich city."
• Millions of activations http://www.lftaustralia.com/2012s-top-five-linux-stories-with-one-big-conclusion-zdnet/
• Over a billion dollars deals: requested to LFT-Australia in less than 6 months to one of our members by using LFT as a main utility of fluent communications over the net: http://www.lftaustralia.com/billion-dollar-deal/