BeeDeeDubbleU - 3:13 pm on Aug 17, 2012 (gmt 0)
Wikipedia's outbound links to references open in the same window.
Their focus is on both of them. How many of those authority sites that you find on SERPS, link out? Be it wikipedia or about (I am mentioning them as I see a huge push of about.com in google SERPS and I am seeing them flooding several newer territories, those that I follow for several years now).