It's always been hard to track toddler-thru-tween obsessions, given their nature to move from Sesame Street to Barney to some anime cartoon to Hannah Montana. That, and we're not 6.

But then Hannah/Miley Cyrus secured a seven-figure book deal, for a book that will be ghost written, and it's like, UGH, maybe these fads are important and we do have to start paying attention.

Look at Mary-Kate and Ashley; they're worth, like, 15 or 20 dollars.

And now there's the huge success of iCarly, a show about a group of tween girls who have webcams.

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