A selection of BusinessWeek headlines from the last 12 months:

Smart Move or Silly Money 2.0?
It Feels Like 1998 All Over Again
Bubble V. Boom?
A Billion for Bebo? Bubble, Bubble, Double Trouble
Social Networks: More Bubble Than Profit? (Part of a special report)
Bubble, Bubble
Tiny Bubbles...
No Web 2.0 Bubble? Hmmm....
Web 2.0 Ads: Another Sign of a Bubble?
Podcasting: The Bubble?

Let's just all put down the magazine and give them some time alone to figure out this bubble.