Apple's Championship Season Online

Another product making the list was a warranty from Apple for its PowerBook computers.

Again, those requests seem to be turning into real sales. A version of Apple's 12" iBook is the top-selling item in Amazon's computer department on Wednesday and Tuesday as well. Among the top 10 selling computers on Amazon's site on Wednesday, six are Apples.

The good news for Apple from Amazon comes amid worries from some investors and analysts about Apple's stock price. Over the last three years, the success of the iPod has helped resurrect Apple's income statements and its share price.

While analysts have praised the company's turnaround, some have questioned recently whether the stock price has gotten ahead of the company's results after rising 44% in just the last three months.

Voicing those concerns, analysts from Bank of America and Bear Stearns downgraded Apple's stock Wednesday, prompting shares to drop $2.94, or 3.9%, to $72.04.

The sales and wish list information from Amazon, however, is by no means definitive. The company does not disclose how many units it has sold of particular items or how many customers have requested particular products, so it's difficult to determine what its sales might mean for Apple.

Moreover, while Amazon is the dominant online retailer, it still represents a small fraction of overall retail sales. What's popular on Amazon may not be popular elsewhere.

Indeed, intermittent analyst reports in recent weeks have suggested that retailers are having difficulty meeting demand for Apple's iPods, particularly the nano. Amazon itself, for instance, is out of stock on all four flavors of the nano, as is Target.com.

BestBuy.com is sold out of all versions of the nano except the white 2GB model. Walmart.com says the devices are available only in its stores.