wristband

The Nike FuelBand won't hit the market for weeks, but the sultan of swoosh already knows it has a hit. The $149 high-tech wristbands sold out quickly during two short-lived online buying opportunities over the weekend. Here's what all the fuss is about.

It's hard to say if any of the fads of the past decade will be as memorable as, say, the Hula Hoop or Frisbee. But like every decade, the 2000s (which, technically, started in 2001) had its fair share of interesting trends: from risky investment strategies to inexplicable crazes over pieces of...