Portuguese Internet Audience Grows to Nearly 4 Million Users in September 2009

comScore Executive Alex Banks to Speak at i-com National Roundtable in Lisbon, Portugal on Thursday 26th November

LONDON, November 24 - comScore, Inc. (Nasdaq: SCOR), a leader in measuring the digital world,
today released the results of a study of the online habits of Portuguese
Internet users, based on data from the comScore World Metrix service. More
than 3.8 million people age 15 and older accessed the Internet from a home or
work location in Portugal in September, viewing an average 1,843 pages and
spending an average 1.9 hours online per person during the month.

(Logo: www.newscom.com/cgi-bin/prnh/20080115/COMSCORELOGO)

"Portugal represents a dynamic and growing Internet market in Europe with
users continuing to be more active and engaged online," said Mike Read,
comScore managing director for Europe and Ibero America. "The average
Internet user in Portugal is spending more time online engaging in different
behaviors such as reading news and articles, search, conducting personal
financial transactions and social networking. As these behaviors continue to
take hold in the Portuguese market there will be an increasing number of
opportunities to leverage the Internet for marketing and advertising
purposes."

Google Sites Reaches 94 Percent of Portuguese Internet Audience

A total of 3.8 million people accessed the Internet in Portugal in
September 2009, up 4 percent on the previous year. The most popular property
was Google Sites with 3.6 million visitors, reaching 93.6 percent of the
total online population, followed by Microsoft Sites (3.4 million visitors)
and Portugal Telecom (2.4 million visitors).

Social networking site, Hi5.com, ranked as Portugal's fourth most popular
online property in September with 2.3 million visitors. Instant messaging
services and social networking sites combined to account for more than one
third (36.5 percent) of the total time spent online in Portugal, with the
heaviest users of social networking sites (top 20 percent of visitors to the
site category) spending an average of 13.4 hours on these sites during the
month.

    Top 15 Online Properties in Portugal*
    -------------------------------------
    Total Portugal - Age 15+, Home & Work Locations
    -----------------------------------------------
    September 2009
    --------------
    Source: comScore World Metrix
    -----------------------------
    Media                      Sep-2008    Sep-2009   % Change
    -----                      --------    --------   --------
    Total Internet : Total
     Audience                      3,665      3,816      4%
    ----------------------         -----      -----     ---
    Google Sites                   2,959      3,570     21%
    ------------                   -----      -----     ---
    Microsoft Sites                2,816      3,397     21%
    ---------------                -----      -----     ---
    Portugal Telecom               2,125      2,398     13%
    ----------------               -----      -----     ---
    Hi5.com                        1,986      2,329     17%
    -------                        -----      -----     ---
    Yahoo! Sites                   1,066      1,422     33%
    ------------                   -----      -----     ---
    UOL                              971      1,254     29%
    ---                              ---      -----     ---
    Grupo Impresa                  1,086      1,215     12%
    -------------                  -----      -----     ---
    Wikimedia Foundation
     Sites                         1,012      1,148     13%
    --------------------           -----      -----     ---
    Grupo Brasil Telecom             863      1,119     30%
    --------------------              ---     -----     ---
    WordPress                        860      1,058     23%
    ---------                        ---      -----     ---
    OnLine eXchange                  625        930     49%
    ---------------                  ---        ---     ---
    IOL.pt                           771        914     19%
    ------                           ---        ---     ---
    Terra - Telefonica               655        890     36%
    ------------------               ---        ---     ---
    Clix.pt                          756        852     13%
    -------                          ---        ---     ---
    CBS Interactive                  394        643     63%
    ---------------                  ---        ---     ---

    *Excludes traffic from public computers such as Internet cafes or access
     from mobile phones or PDAs.

Hi5.com Most Popular Social Networking Site

Slightly less than 3 million people visited a social networking site in
September, up 16 percent versus the previous year and representing 78.4
percent of the total Portuguese online population. Hi5.com was the most
popular social networking site with 2.3 million visitors, followed by Windows
Live Profile (1.2 million visitors), Facebook.com (639,000 visitors) and
MySpace Sites (289,000 visitors).

While Hi5.com remained the market leader in Portugal in September,
international sites proved to be a growing force in the Portuguese social
networking space. Facebook.com grew 463 percent on the previous year to reach
639,000 visitors in September; Badoo was up 3,018 percent to 238,000
visitors, while popular micro-blogging site, Twitter.com grew 842 percent in
the past year to 249,000 visitors in September 2009.

    Top 10 Social Networking Sites in Portugal*
    -------------------------------------------
    Total Portugal - Age 15+, Home & Work Locations
    -----------------------------------------------
    September 2009
    --------------
    Source: comScore World Metrix
    -----------------------------
    Media                      Sep-2008   Sep-2009   % Change
    -----                      --------   --------   --------
    Total Internet : Total
     Audience                      3,665   3,816          4%
    ----------------------         -----   -----        ---
    Social Networking              2,585   2,992         16%
    -----------------              -----   -----        ---
    Hi5.com                        1,986   2,329         17%
    -------                        -----   -----        ---
    Windows Live Profile             N/A   1,225        N/A
    --------------------             ---   -----        ---
    Facebook.com                     113     639        463%
    ------------                     ---     ---        ---
    MySpace Sites                    267     289          8%
    -------------                    ---     ---        ---
    Orkut                            170     256         50%
    -----                            ---     ---        ---
    Twitter.com                       26     249        842%
    -----------                      ---     ---        ---
    Netlog.com                       204     244         19%
    ----------                       ---     ---        ---
    Badoo.com                          8     238      3,018%
    ---------                        ---     ---      -----
    Windows Live People              N/A     218        N/A
    -------------------              ---     ---        ---
    Deviantart.com                    94     156         67%
    --------------                   ---     ---        ---

    *Excludes traffic from public computers such as Internet cafes or access
     from mobile phones or PDAs.

Alex Banks to Attend CAEM i-com National Roundtable in Lisbon, Portugal

Alex Banks, comScore's managing director of Latin American markets, will
be attending the CAEM i-com National Rountable in Portugal on Thursday 26th
November. The event will focus on the future of digital audience measurement
in Portugal and comScore will contribute its unique experience gained from
measuring Internet audiences in over 40 countries across the globe to this
discussion. For more information on this program please visit the following
link: i-com.org/i-com-national-roundtable-port/.

About comScore

comScore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital
world and preferred source of digital marketing intelligence. For more
information, please visit www.comscore.com/companyinfo.

Jamie Gavin, comScore, Inc., +44-(0)207-099-1775, worldpress at comscore.com