"Skydeck. It's a mobile web startup built on the premise that 'you ought to be able to manage your cell phone records the same way that you manage your email.' The second big idea of Skydeck is that your true social network is hidden in your communication records...
Your true network is not the list of people that you 'friend' on Facebook or LinkedIn; it's the people that you call and text and email and IM every day. Those friends are not created equal. The ones you speak to most often are important, and the guy that you exchanged one email with in 2001 is not, even if he tags you on every new social site online. Skydeck maps your true social network using your cell phone data. Straight away you can see who you call most often, who you need to call, and who never calls you back. If you make a lot of phone calls, this can change your behavior."
