Good morning and welcome to another edition of our morning linkfest.  Tell us what you think.

The S&P 500 has been above its 50-day moving average for 100 days.  Time to worry?  (Ticker Sense)

Nokia (NOK) and Microsoft (MSFT) announce a smartphone operating system partnership.  (WSJ, NYTimes, FT Alphaville, asymco)

Why Twitter just might be worth $10 billion.  (Herb Greenberg also Information Arbitrage, Paul Kedrosky)

Why Whitney Tilson covered his Netflix (NFLX) short.  (Dealbreaker)

Why buy the fund when you can buy the fund company. (Kiplinger’s)

Rethinking gold.  (Pragmatic Capitalism, MacroMania)

Being a central banker is tough these days.  (FT Alphaville)

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