Millennial Media Selected as One of FierceWireless "Fierce 15" Wireless Companies of 2007

BALTIMORE, MD -- (MARKET WIRE) -- April 23, 2007 -- Millennial Media today announced that it has been named to the annual FierceWireless "Fierce 15" list, designating it as one of the top wireless companies of the year. FierceWireless editors evaluated hundreds of organizations, and found Millennial Media to be amongst the "fiercest," proven by their creativity and innovations in the marketplace. Millennial Media provides mobile advertising services that effectively deliver the greatest reach to advertisers, mobile ad revenue to publishers and incremental revenue to mobile operators.

"Millennial Media's Millennial Marketplace and underlying technology unifies the fragmented mobile advertising ecosystem," said Sue Marek, editor-in-chief of FierceWireless.

"We are proud that FierceWireless has identified Millennial Media as an innovative player in the wireless industry," said Paul Palmieri, CEO of Millennial Media. "It is an honor to be recognized by such a well-regarded industry news outlet."

Millennial Media's cross-platform technology enables the broadest reach, most effective targeting and most insightful measurement. Its services and technology include:

--  Millennial Marketplace -- A network of mobile media properties that
    provides high-value advertising space across all platforms and formats,
    creating opportunities for brand advertisers to drive consumer engagement.
--  Millennial Motion -- Technology and services that deliver rich media
    mobile campaigns that builds brand engagement in new ways.
--  Decktrade -- A new marketplace for advertisers and publishers that
    acts as a performance-based auction service to meet the immediate
    advertising goals of mobile content providers and direct marketers while
    creating incremental revenue for publishers.
--  Millennial Media's MYDAS -- A cross-platform ad serving technology
    that scales to monetize all available impression inventory and optimizes ad
    delivery for the most effective targeting and best ad presentation
    possible.
    

Fierce Wireless, an internationally recognized daily email newsletter reaching more than 74,000 senior wireless industry executives, provides executives in over 100 countries with a quick, authoritative briefing on the day's top wireless stories, including new trends and technologies.

The FierceWireless "Fierce 15" celebrates the spirit of being "fierce" -- championing innovation and creativity, even in the face of intense competition. The complete list of winning companies is available today in a special issue of FierceWireless and on the FierceWireless Web site at http://www.fiercewireless.com.

About Millennial Media

Millennial Media is a mobile advertising company that uses its deep understanding of mobile consumers, technologies and media to deliver advertising solutions to marketers. Our superior mobile ad-serving and optimization technologies also deliver publishers a differentiated way to monetize their mobile content. Millennial Media ad networks meet the diverse needs of advertisers with the premium Millennial Marketplace and Millennial Motion networks, and the best-in-class mobile performance marketplace, Decktrade. For more information visit http://www.millennialmedia.com

About FierceMarkets

FierceMarkets is a digital business media company serving vertical markets with email newsletters, web sites, and live events. Based in Washington, DC, FierceMarkets publications reach more than 450,000 executives in over 100 countries every business day. Current publications include The Business VoIP Report http://www.businessvoipreport.com), DailyTechRag (http://www.dailytechrag.com), FierceBioResearcher (http://www.fiercebioresearcher.com), FierceBiotech (http://www.fiercebiotech.com), FierceBioResearcher (http://www.fiercebioresearcher.com), FierceCIO (http://www.fiercecio.com), FierceDeveloper (http://www.fiercedeveloper.com), FierceFinance (http://www.fiercefinance.com), FierceGameBiz (http://www.fiercegamebiz.com), FierceHealthCare (http:///www.fiercehealthcare.com), FierceHealthIT (http://www.fiercehealthit.com), FierceIPTV (http://www.fierceiptv.com), FierceMobileContent (http://www.fiercemobilecontent.com), FierceSarbox (http://www.fiercesarbox.com), FierceVoIP (http://www.fiercevoip.com), FierceWiFi (http://www.fiercewifi.com), FierceWireless (http://www.fiercewireless.com), and IT-Wireless (http://www.it-wireless.com).

Contact Information: Contact: Kristy Cory Double Forte for Millennial Media 503-887-4544 kcory@double-forte.com Heather Cox FierceMarkets, Inc. 202-628-8778 x13 heather@fiercemarkets.com