Pre-Marketing: Barnes & Noble buyout?

May 20, 2011, 3:25 PM UTC

Deep-fried pancakes... If the world's ending, why not?

* Final chapter? Liberty Media offers to buy Barnes & Noble for more than $1 billion

* Next-gen insider trading: How social networks have “friended” access to confidential information

* Ronald stays: McDonald’s shareholders reject call to assess company’s impact on childhood obesity

* Morning Call: U.S. futures point lower, London rises earlyEuropean shares climb on energy and the Nikkei slips.

* Flashback: 5 prior “end of the world” predictions

* Gwen Robinson: The tragedy of Tepco (yes, it can get worse)

* Context: A historic look at the U.S. debt ceiling

* Paul Kedrosky: A tradable strategy connected to air pollution?

* Tale of two floats: While LinkedIn soared after its IPO, Glencore slumped

* Your results may vary: The effect of automated Web filters on what we do, and don’t see

* Shirva Ovide: If Exxon had the same multiple as LinkedIn, it would be worth more than U.S. GDP

* Stephen Chapman: University websites are providing more than just education and campus maps…

* Tweet of the Day: @peterjhebert Only explanation: Clarence Beeks delivered a report urging the Dukes to Buy #LNKD