In the U.S., Google was the most popular website in March 2011, with 152 million unique visitors from home and work computers. Among the 10 most popular web brands, Facebook led in average time spent on site by U.S. visitors.

As in December 2010, the same brands were featured amongst the 10 most popular online in the U.S. in January 2011 except for Wikipedia replacing Amazon (now 11th).

For the first time, MSN/Windows Live/Bing Search overtook Yahoo! as the #2 search engine in the U.S. with a 13.9% share of search volume in August 2010, a 0.25% delta increase from the previous month. Although Google saw little change in its month-over-month search volume, it still dominates the search market, accounting for 65% of all U.S. searches.

In July, Google remained the top search site, accounting for over 3 out of five searches (64.2%) despite a slight drop in share from last month.

Smartphones now account for 25% of the U.S. mobile market, up from 23% in the last quarter according to recent data from The Nielsen Company.

Along with its listing of the top brands and companies on the web for June 2010, The Nielsen Company also found that the average time spent online in the U.S. grew more than three percent compared to the previous month.

92% of all searches in the U.S. were done through the top three engines: Google, Yahoo! and Microsoft’s MSN/Windows LIve/Bing.

There was little change in the US search market from April to May with Google still accounting for almost two-thirds share of all US searches (65.1%) in the month of May 2010.

In May 2010, U.S. web surfers on average spent more than 54 hours online according to the latest statistics from The Nielsen Company.

Whether it‘s checking email on the go, connecting with friends through social networks or using turn-by-turn navigation, the capabilities of smartphones are convincing more and more consumers to make the leap from a simple mobile phone to a more sophisticated device.