Nothing like a familiar topic, like the ETF explosion, to start off the linkfest.

Thomas D. Saler in Barron’s on the explosion in popularity of ETFs.

Lawrence C. Strauss in Barron’s on the competition ETFs are providing open-end index mutual funds.

Random Roger thinks the mainstream media should think a little harder about how investors can (constructively) utilize ETFs.

First day of the month means a new highlights and commentary page from FundAlarm.com, including some links to mutual fund company sponsored podcasts.

Roger Ehrenberg at Information Arbitrage appreciates the way one hedge fund manager is going about his business.

DealBook on the growing debate over the proper valuation for various social networking-type companies.

Daniel Gross in the New York Times on how higher interest payments are baked into the cake the next couple of years for individuals and the government alike.

Brett Steenbarger at TraderFeed on the odd day/night dichotomy in performance for the S&P 500.

Paul J. Lim in the New York Times on whether this current bull market is (still) a part of a longer term, secular bear market.

Ticker Sense looks at sector relative strength at the end of the third quarter.

We have written in the past on the value of quantitative research, but putting those strategies literally on auto-pilot is another thing altogether. (via Wall Street Journal)

Tim Harford at the FT.com applies a little Economics 101 to the question of obesity in the developed world.

Chris Isidore at CNNMoney.com on an interesting development by the NFL to take stock as a part of sponsorship deals.

We are suckers for any sort of mini-jet story, Scott McCartney in the Wall Street Journal obliges with a first-hand look at three new planes.

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