comScore Top 50 Properties (U.S.)
        February 2012
        Total U.S. - Home, Work and University Locations
        Source: [Opt7_Microdata_Organization_1809477977]

        Rank   Property                        Unique Visitors  
                                               (000)  
               Total Internet : Total Audience 219,988
        1      Google Sites                    186,590
        2      Microsoft Sites                 174,405
        3      Yahoo! Sites                    173,539 
        4      Facebook.com                    158,745 
        5      AOL, Inc.                       108,270 
        6      Amazon Sites                    105,946  
        7      Wikimedia Foundation Sites       87,026  
        8      Glam Media                       86,668  
        9      Ask Network                      83,673   
        10     Turner Digital                   80,026   
        11     Apple Inc.                       78,692   
        12     CBS Interactive                  78,175   
        13     Comcast NBCUniversal             76,880   
        14     New York Times Digital           75,844   
        15     Viacom Digital                   73,755   
        16     eBay                             71,264    
        17     Federated Media Publishing       60,034    
        18     Demand Media                     59,560   
        19     VEVO                             59,329   
        20     Weather Channel, The             55,301   
        21     craigslist, inc.                 52,766    
        22     Gannett Sites                    51,173   
        23     Answers.com Sites                44,677    
        24     Wal-Mart                         38,664   
        25     Twitter.com                      38,434     
        26     Technorati Media                 37,274
        27     LinkedIn.com                     36,055
        28     Adobe Sites                      34,098
        29     AT&T Interactive Network         33,936
        30     NetShelter Technology Media      33,571
        31     Tribune Interactive              32,221
        32     ESPN                             31,744
        33     Alloy Digital Network            31,461
        34     Disney Online                    31,141
        35     Fox News Digital Network         30,672
        36     Yelp.com                         30,586
        37     Intuit                           29,846
        38     Break Media                      29,803
        39     Everyday Health                  27,924
        40     Netflix.com                      27,354
        41     The Washington Post Company      25,752
        42     Myspace                          25,461
        43     IRS.GOV                          25,051
        44     Yellowbook Network               24,685
        45     Internet Brands, Inc.            24,670
        46     Liberty Media Holding Corp       24,401
        47     Cox Enterprises Inc.             23,929
        48     Scripps Networks Interactive     23,909
        49     Target Corporation               23,905
        50     BuzzMedia                        23,876