The weekend is a great time to catch up on some long-form links you missed during the week. We think this should also include our new book, Abnormal Returns: Winning Strategies from the Frontlines of the Investment Blogosphere. Enjoy.

Investing

On the wrong way to use an index fund.  (The Psy-Fi Blog)

Hard to understand ETFs are a minefield for individual investors.  (Bloomberg)

One fund manager may be a tad too involved with his industry.  (WSJ)

Money is fungible…our emotions are not.  (The Psy-Fi Blog)

Finance

Once again in defense of private equity.  (Epicurean Dealmaker)

What we got wrong about the financial crisis.  (The Atlantic)

Economics

Anatole Kaletsky on the need for a whole “new capitalism.”  (The Browser)

Are economics PhDs learning the wrong things?  (Businessweek)

The long-term demographic problems of Europe.  (New Geography)

How the current art market resembles the Gold Rush.  (NYTimes)

Technology

What is Silicon Valley?  (Pando Daily)

Mary Meeker’s latest look at internet trends.  (GigaOM)

Why Silicon Valley needs humanities majors.  (Washington Post)

The Amazon effect on the publishing industry.  (The Nation via Arts & Letters Daily also WSJ)

Psychology

Why is our memory so good and so bad at the same time.  (Scientific American)

B. F. Skinner was right…all we needed was an iPhone to carry out behavior modification.  (The Atlantic)

Science

The trend towards implantable technologies will create a ‘superenabled future.’  (WSJ)

Why we humans love crispy foods.  (The Chronicle via The Browser)

Meet the man who wants to jump from 120,000 feet above the earth.  (Air & Space via The Browser)

Baseball

The baseball players who only got one game in the major leagues.  (The Awl)

The story of steroids in baseball.  (SI)

Entertainment

An oral history of The Wire.  (Maxim)

Opening acts are the new headliners.  (WSJ)

Books

An excerpt from Michael J. Casey’s The Unfair Trade: How Our Broken Global Financial System Destroys the Middle Class.  (WSJ)

An excerpt from Frank Sennett’s Groupon’s Biggest Deal Ever: The Inside Story of How One Insane Gamble, Tons of Unbelievable Hype, and Millions of Wild Deals Made Billions for One Ballsy Joker.  (WSJ)

An excerpt from Nassim Taleb’s new book, Antifragile: Things That Gain From Disorder.  (Farnam Street)

Thanks for checking in with Abnormal Returns. You can follow us on StockTwits and Twitter.