Apple Computer Inc.'s (AAPL.O: Quote, Profile, Research) sleek iPod nano music player was among the top-selling electronic items on Amazon.com on Friday and some models sold out on a top retailer's Web site as consumers stocked up on holiday gifts on one of the year's busiest shopping days.

The stock of Cupertino, California-based Apple was the fifth-best performer on the Standard & Poor's 500 Index on Friday, climbing 3.3 percent to close at $69.34 and helping the index hit a 4-1/2-year closing high.

Apple's black iPod nano with 2 gigabytes of storage, or enough to hold 500 songs, was the sixth best-selling electronic gadget on Amazon.com's (AMZN.O: Quote, Profile, Research) list of most popular items, which is updated hourly. A white version was No. 10 on the list. Amazon was selling the nanos for $199.88.

Retailer Best Buy Co.'s (BBY.N: Quote, Profile, Research) Web site was sold out of both the white and black versions of the 4-gigabyte nano priced at $249.99. A spokeswoman for the retailers said Best Buy limited the number of connections to its site due to heavy volume related to the launch of Microsoft Corp's(MSFT.O: Quote, Profile, Research) Xbox 360 video game console this week.

Best Buy was the retail launch partner for the new Xbox.

The day after Thanksgiving is traditionally one of the biggest shopping days as retailers offer deep discounts to bolster holiday sales.

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