Amazon.com (AMZN -2.56%) is continuing to put up a determined fight in the tablet wars. The retailer said in a press release Wednesday that this past Thanksgiving weekend was "the best ever" for sales of its Kindle line of tablets and e-readers. Additionally, the HDX 7" and HD configurations of the Fire tablet were the top-selling goods on Amazon.com over that stretch of time.

Both models belong to the new generation of the Fire series unveiled by the company this past September. Tablets in the series range in price from $139 for the 7" HD model with 8 GB of storage to $594 for the Fire HDX with a 8.9" display, 64 GB, Wi-Fi and 4G LTE, and no lock screen advertisements.

According to a poll from the National Retail Federation, approximately four in ten Thanksgiving weekend 2013 shoppers surveyed bought at least some of their goods online. Those consumers spent an average of $177.67 each on Internet purchases, which was roughly 43.7% of their total spending that weekend. The latter figure was three percentage points higher than the 40.7% in the same period last year.

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