Google Inc. (NASDAQ:GOOG) subsidiary YouTube.com has hit 20 billion views in October. This is 50% of all the videos that was watched in the U.S. according to comScore. U.S. Internet users watched 42.6 billion videos in October and YouTube accounted for 20.9 billion of those views. comScore also revealed that YouTube has the highest engagement with users by averaging over 7 hours of video each during the month. [comScore]

comScore (NASDAQ:SCOR) has released some numbers about the holiday season spending for U.S. retail e-commerce spending. During teh holiday season about $15 billion was spent online, which makes it a 15% increase versus the year before. Cyber Monday accounted for $1.25 billion in online spending, which is 22% higher than last year. This makes it the heaviest online spending day in history and the second day on record to pass the billion dollar threshold. Nice job, consumers!

The Nielsen Company is accusing comScore, Inc. (NASDAQ:SCOR) of infringing on five patents that relates to measuring and displaying online content. The lawsuit was filed in a Virginia federal court. In the lawsuit filing, Nielsen lists 30 different comScore products that violates their patent rights.

According to comScore, Microsoft’s share of the U.S. smartphone market is about 8%. It slid down from 9.7% at the end of October. Windows Phone 7 was released on October 21 in Europe and Asia and November 8 in North America. Google Android’s market share increase to 31.2% from 23.5%. Apple remains on top at 24.7% at the end of January. It is highly likely that the Nokia-Microsoft deal could help Windows Phone 7 increase in market share. [Seattle Pi]

O Canada! Our home and native land is the Internet! What I mean is that Canadians rank the most enthusiastic users of the Internet. According to comScore, Canada also had the highest penetration of Internet access. About 68% of Canadians are online. Compare this to 62% of France, 60% in Germany, 57% in Japan, 59% in the U.S. Canada is also the only country where an average user logged over 2,500 minutes online per month.

November 29, 2010 (known as Cyber Monday) was the heaviest online shopping day in history. According to comScore (NASDAQ:SCOR), over $1 billion was spent online on that day. This is a 16% increase from the year ago. During the holiday season-to-date, about $13.55 billion has been spent online. This is a 13% increase during the same time last year.

comScore has released some new figures about the amount of video that has been watched over the past month. According to comScore, 178 million Internet users watched video content in August at an average of 14.3 hours per viewer. About 5.2 billion viewing sessions took place in the month of August and 85.1% of users in the U.S. viewed online video as well.

According to comScore, Americans spent more time on Facebook and Yahoo! for the first time in August. Users spent 41.1 billion minutes on Facebook and 39.8 billion minutes on Google. Users spent 37.7 billion minutes on Yahoo!, but Yahoo! edged Google in monthly traffic by a little bit.