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Top U.S. Web Sites and Brands for May 2010
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Top U.S. Web Sites and Brands for May 2010

Top 10 Parent Companies/Divisions for May 2010 (U.S., Home and Work)
Rank Parent Unique Audience (000) Time Per Person (hh:mm:ss) MOM UA % Change MOM Time % Change
1 Google 160,791 1:57:02 1.4% -0.5%
2 Microsoft 136,805 1:53:10 1.1% -1.6%
3 Yahoo! 133,385 2:15:17 2.8% -6.2%
4 Facebook 125,243 6:18:25 2.4% -6.2%
5 AOL LLC 81,559 1:50:02 1.9% -11.2%
6 News Corp. Online 76,116 0:49:37 -1.0% -4.5%
7 InterActiveCorp 73,004 0:12:49 3.6% -1.9%
8 eBay 62,453 1:20:00 1.0% -3.1%
9 Wikimedia Foundation 60,870 0:16:04 2.4% 8.3%
10 Amazon 60,693 0:24:07 -0.2% 1.1%
Source: The Nielsen Company

Top 10 Web Brands for May 2010 (U.S., Home and Work)
Rank Brand Unique Audience (000) Time Per Person (hh:mm:ss) MOM UA % Change MOM Time % Change
1 Google 153,033 1:12:52 2.0% -4.4%
2 Yahoo! 133,269 2:15:21 3.8% -6.3%
3 Facebook 125,243 6:18:25 2.4% -6.2%
4 MSN/WindowsLive/Bing 112,233 1:45:36 1.0% -0.7%
5 YouTube 97,078 1:08:40 3.2% 4.3%
6 Microsoft 86,732 0:40:26 0.7% -3.0%
7 AOL Media Network 81,559 1:50:02 1.9% -11.2%
8 Wikipedia 60,639 0:16:00 2.3% 8.7%
9 Apple 60,609 1:14:30 -0.9% 2.5%
10 Fox Interactive Media 58,804 0:56:15 -2.3% -4.0%
Source: The Nielsen Company

Average U.S. Internet Usage, Combined Home & Work, Month of May 2010
Metrics Current Month Previous Month % Change
Sessions/Visits per Person 56 56 0.0%
Domains Visited per Person 86 83 3.6%
Web Pages per Person 2460 2545 -3.3%
PC Time per Person 54:52:08 57:30:51 -4.6%
Duration of a Web Page Viewed 0:00:55 0:00:56 -0.5%
Active Digital Media Universe 198,007,044 197,578,927 0.2%
Current Digital Media Universe Estimate 236,513,000 236,245,000 0.1%
Source: The Nielsen Company