<img src='http://www.crunchbase.com/assets/images/resized/0005/4816/54816v1-max-250x250.png' class="snap_nopreview shot" alt="" />Slingshot Labs, a research and development arm for News Corp.'s digita
<img src="http://tctechcrunch.files.wordpress.com/2010/01/slingshotlabslogo-215x66.png" width="215" height="66" />Earlier today Valleywag <a href="http://valleywag.gawker.com/5447489/shutting-down-rup
<img src="http://tctechcrunch.files.wordpress.com/2009/07/wsj-215x33.jpg" width="215" height="33" />The Wall Street Journal has long envied the success of professional social network LinkedIn and its