William Blair & Company

"comScore’s enviable position among agencies, marketers, and publishers was highlighted by 54% of respondents indicating that comScore is the audience measurement service of choice, up from 47% last survey.”

Julie Batten
The ClickZ Network

A New, Improved Search Marketing Tool

“Looking for insights on searcher demographics, behaviors, and traffic patterns on yours and rivals' sites? You might try looking here.”

Meaghan FitzGerald
Director, Audience Measurement
Yahoo!

"comScore doesn't wait for the industry, and innovates as the need is seen. Its flexible meter and backend picks up new technologies, and I like the international/ worldwide coverage." (April 2008)

Natasha Funk
Sales Research Manager
Terra Lycos

"comScore is the only syndicated service that provides behavioral audience insight for sites in Spanish through Plan Metrix, which places the burgeoning online Hispanic market head to head with General Market in terms of available research." (February 2008)

Blake Cuthbert
London Media Planner
Tribal DDB

"World Metrix is the only reference to evidence online media plans." (February 2008)

Aaron Ricadela
Businessweek

"Considered by many to be the industry standard for audience tracking on the Web" (January 2008)

Dan Calladine
Research Director
Isobar

"The Internet will always be a global medium, and audiences often follow interests more than national boundaries.  Agencies need to be aware of this and realize that when they buy on U.K. sites they may also get an international audience.  Research like [comScore's] is enlightening because it makes people think about established media channels differently." (May 2007)

Eric Auchard
Technology Correspondent
Reuters

"[comScore] releases data monthly and is the most widely accepted measure of the Web search market competition." (May 2007)

Ian Smith
CEO
Yahoo!7

“Independent third-party measurement of the size of site audiences is critical to the development of advertising on the Internet, just as it is in TV or print .... Yahoo! supports panel-based audience measurement and comScore’s robust sample gives us the accuracy and visibility into the entire market that we need to help build our business." (April 2007)

John E. Potter
Postmaster General/CEO
USPS

"We worked with comScore, one of the leading Internet consumer research firms, to look at the relationship between Direct Mail and online shopping behavior. Here's what they found:

• More than 8 out of 10 people said it was easier to shop online after receiving a catalog.
• Online shoppers who received a Direct Mail piece were almost twice as likely to buy as those who only received Internet advertising.
• If that Direct Mail piece was a catalog, the results were even better.
• People who received Direct Mail bought one-and-a-half times more merchandise on retailers' web sites than those who were contacted only through the Internet.

Andy Jedynak
Chief Marketing Officer
WeatherBug

"comScore Media Metrix has shown strong leadership in making sense of our industry from a numbers perspective. I particularly appreciate their attention to accurately counting daily unique visitors across all aspects of the digital world. For decades, daily market share, whether readership or viewership, has been the principal currency for media companies to demonstrate their reach and utility to the advertisers that support them, and I see comScore Media Metrix as the authoritative source for this category of information. (February 2007)

Meridee Alter
SVP, Media Director
Rubin Postaer and Associates

"We switched to comScore Media Metrix because we were convinced that comScore's superior measurement methodology would allow us to more accurately evaluate site audiences as well as reach and frequency. Media Metrix is an easy-to-use, indispensable tool for planning our online media campaigns.

In a nutshell, we couldn't do our job without comScore Media Metrix." (February 2007)

Sophia Agustina
Metrics Analyst
LYCOS, Inc.

"Plan Metrix provides us with insightful information on what our users are consuming and doing, both in the online and offline worlds. This information is gathered for many critical areas of our business which is then utilized to customize the user experience and meet our business goals." (February 2007)

John Battelle
Chairman and Publisher
Federated Media

“If anyone can provide the audience measurement services needed by the blogosphere, it’s comScore." (February 2007)

Beverly Atkins
President
Go Fish Media, Inc.

"comScore's reach/ frequency tool provides the data we need to help our clients understand the how much of their budgets should be shifted from traditional to online media." (January 2007)

Rodney Miles
CEO
www.strawberrynet.com

"comScore’s data relate very closely to our own records and therefore give us an extremely accurate fix on our progress versus our competitors. First class company, data and services." (January 2007)

Kathleen Greenler Sexton
Vice President and Chief Marketing Officer
HighBeam Research, Inc.

"As we develop new research tools for our members, comScore’s historical, demographic and tracking data has been essential to helping us better target our marketing efforts and grow our business." (January 2007)

Sarah Mahoney
Mediapost

"comScore Networks [is] a leader in measuring digital sales." (January 2007)

Barry Kresch
SVP, Research
iVillage

"comScore Media Metrix, with its depth of reporting and superior service, has been a valued partner in moving our business forward for ten years." (January 2007)

Shervin Pishevar
President
Freewebs.com

"comScore data is an invaluable tool for making business decisions, especially for a growing online community like Freewebs. The metrics that comScore provide help us size the competition and demonstrate the value Freewebs can bring to advertisers and partners looking to strengthen their brand through people-powered media." (December 2006)

Natasha Funk
Sales Research Manager
Terra Networks

"comScore provides a wealth of information for comparing U.S. Hispanics to the general market, including language preference segmentation. And their client services manager is very responsive." (December 2006)

Jonathan Graff
President
Kaboose, Inc.

"comScore information is crucial in helping us to understand our position, growth rate and definitive points of difference in order to drive revenue. Most importantly, comScore is widely recognized and relied upon by all of our advertising agency and advertiser clients." (November 2006)

Pam Murrin
Group Vice President
Time Warner Cable

"Time Warner Cable relies on comScore's detailed competitive insight and trended data for making business decisions in the numerous markets we serve." (November 2006)

Bob Parsons
CEO and Founder
GoDaddy.com

"comScore is one of the largest research firms in the U.S. … they have tremendous influence and insight into the trends and audience online." (November 2006)

Matias Perel
CEO
LATINTHRE3

"comScore Media Metrix is an invaluable tool in helping us to better understand and to plan media for the Latin American and U.S. Hispanic markets." (November 2006)

Kevin Hicks
Vice President, Online Ad Sales
Whitepages.com, Inc.

"Media Metrix has saved my team countless hours researching facts vital to the success of our business. The information is comprehensive and accurate, and their customer service is exceptional. By far, they are one of the best in the industry." (October 2006)

Dan Maurer
Vice President of Marketing, Tac Group
Intuit Corporation

“After an evaluation of multiple vendors, we chose comScore Networks for our online measurement needs based on the depth of information available from its panel of more than two million participants." (October 2006)

Kevin Ertell
Director, Interactive Marketing
Borders

"The customer and employee research comScore Insights did for us while we were piloting Borders Rewards — and the associated insight provided — was critical to the positive decisions we made to greatly improve the program we launched nationally." (October 2006)

David Poltrack
President, CBS VISION
Chief Research Officer, CBS Corporation

"I applaud comScore for its continued innovation in producing the metrics that are needed to help move the advertising industry forward. As the provision of online video content continues to grow, it is vital that the industry has a comparative measure of all the competing entries in this segment of the Internet advertising market." (October 2006)

Joanne Arnold
Chief Research Officer
Lifetime Television

"comScore’s customer service is of the highest standard compared to other media/television and Internet research vendors I have used. Their team is readily available to assist in the understanding of data and provide valuable industry insights." (October 2006)

Anita Bizzotto
Chief Marketing Officer and Executive Vice President
USPS

“comScore has helped us drive our business in multiple ways: comScore provides us not only with insight on where growth opportunities are, but with actionable ideas on how we can capitalize on them." (October 2006)

Andrew Hossom
Vice President, Marketing
FOX Sports Interactive

"comScore data seems to map more accurately to our actual data and this gives us significantly more confidence when analyzing our competition." (September 2006)

Carrie Birth
Consumer Market Knowledge Executive
Procter & Gamble Baby Care

"In a fast changing world, we need to continually seek new and innovative touch-points to reach “Mom” and BAR® was a great way to do this. We gained deep insights into how to improve this messaging, which proved to be the foundation of our marketing plan for the following year.

The main reason we decided to use BAR® was to touch base with the consumer where she makes her decision, at the first moment of truth in the store. This vehicle allowed us to capture feedback where it matters most, when she is making that choice to buy our product or not." (September 2006)

Ted Leonsis
Vice Chairman
AOL

"You see, there are two major services that evaluate the size of a Web site's audience, comScore Media Metrix and Nielsen Netratings .... Only comScore, however, offers reporters access to an apples-to-apples comparison that measures the entire network of sites owned by each major player." (September 2006)

David Bernstein
Group Manager, Value Measurement Research
Verizon

"Through our Yellow Pages programs, Verizon is committed to delivering maximum value to advertisers and consumers alike. To accomplish this, we require a detailed understanding of activity at the local market level, where we bring buyers and sellers together. comScore brings us the ability to accurately report consumer activity across dozens of local markets. comScore helps us to deliver the value and ROI that our advertisers expect." (June 2006)

Jed Horowitz
Managing Member
Video Detective, LLC.

“We use comScore Video Metrix to educate promotional partners at studios and record labels on the effectiveness and reach of streaming video content. Because we are able to show them so much demographic detail tied directly to video viewing, they are able to put a real value on the materials they provide us."  (May 2006)

Chris Dobson
Vice President of Sales
MSN International

“Previously, MSN has attempted to harmonize disparate sources of data to get a global view.  The fact that comScore World Metrix data are produced with a consistent methodology worldwide will make a significant difference, enabling us to analyze what is happening globally and truly understand consumer online behavior. This is a significant step forward for the industry and timed perfectly as the importance of markets outside the U.S. grows, especially rapidly developing countries like China and India, which up to now have not enjoyed such insight." (May 2006)

Geoffery Ramsey
CEO and Co-Founder
eMarketer

“We analyze diverse data from hundreds of research sources, but comScore consistently nails the consumer e-commerce numbers. It's encouraging to know how close comScore's numbers line up with Department of Commerce data." (February 2006)