The 2010 holiday season continues to break records and exceed expectations. Passing the billion-dollar mark for the first time, Cyber Monday has been crowned history’s busiest online spending day by comScore.

In the U.S., total online sales for Monday hit $1.028 billion, according to comScore. That was an increase of 16 percent from last year’s $887 million total.

Black Friday also set records with a $648 million total, a 9-percent increase over 2009, according to comScore. Other research firms listed that increase as high as 16 percent.

Overall, 2010 holiday Web sales are up to about $13.55 billion since November 1, a 13-percent increase over last year’s total to date.