comScore (NASDAQ : SCOR), a leader in measuring the digital world, today reported holiday season retail e-commerce spending for the entirety of the November – December 2009 holiday season. For the full holiday online shopping season, $29.1 billion was spent online, marking a 4-percent increase versus the same period last year. The season featured distinct periods of strong spending growth surrounding the Thanksgiving-Black Friday timeframe and the final shopping week leading up to Christmas.

The press release below is also available at comScore