Utilizing Limelight Networks and Microsoft Technology, Blockbuster Premieres First Studio-Backed Broadband Movie

from streaming media:

TEMPE, ARIZ. (December 17, 2007) - Limelight Networks® (Nasdaq: LLNW), the leading content delivery network (CDN) for digital media, today announced that Blockbuster Inc., a leading global provider of in-home movie and game entertainment, has exclusively selected Limelight Networks’ rich media CDN and Microsoft Silverlight to provide the technical streaming capabilities for the first studio-backed feature streamed in its entirety - JACKASS 2.5 - to be distributed directly online by Paramount Pictures Digital Entertainment, MTV New Media group from MTV Networks and BLOCKBUSTER®.

Available for free, courtesy of BLOCKBUSTER, at blockbuster.jackassworld.com beginning December 19th through December 31st, 2007, the U.S. online distribution of JACKASS 2.5, an event made possible by the recent acquisition of Movielink by Blockbuster Inc., leverages the power of Limelight Networks’ CDN and Microsoft Silverlight.

“This ground-breaking event underscores our commitment to providing customers with convenient access to media entertainment, whether it’s through our stores, the mail or through new technologies,” said Keith Morrow, chief information officer for Blockbuster Inc. “Combining the CDN performance and scalability of Limelight Networks with the power of Microsoft Silverlight should deliver a compelling and high-quality viewing experience to online viewers of JACKASS 2.5.”

The release of JACKASS 2.5 taps into a market which is believed to be a driving force for online digital media consumption today. In search of the right solution to power the movie premiere, BLOCKBUSTER turned to Limelight Networks and Microsoft as two leaders in online media delivery.
“BLOCKBUSTER is taking a great step forward in making Hollywood digital,” said Brian Goldfarb, group product manager in the developer division at Microsoft Corp. “Using Silverlight for this initiative will provide consumers with an outstanding, high-quality experience in online entertainment.”

“BLOCKBUSTER is making history by driving the studio-backed release of JACKASS 2.5 to an audience whose lifestyles are continually influenced by the latest online innovations,” said Dave Hatfield, senior vice president of products, marketing and sales at Limelight Networks. “Limelight Networks’ infrastructure was built for these types of large, rich media streaming events. Coupled with our strong relationship with Microsoft and its leading-edge Silverlight platform, BLOCKBUSTER could not have a better solution and team supporting this project and helping them in their efforts to deliver a dynamic entertainment adventure to consumers.”

Streaming JACKASS 2.5 is open to anyone in the U.S. 17 years or older whether they are a BLOCKBUSTER member or not. And best of all, it’s free. Available December 19th through December 31st, go to blockbuster.jackassworld.com, download the free Microsoft Silverlight media player and with a few quick steps, you’re watching the movie.

About Limelight Networks
Limelight Networks is a high-performance content delivery network for digital media, providing massively scalable, global delivery solutions for on-demand and live Internet distribution of video, music, games, software and social media. Limelight Networks’ infrastructure is optimized for the large object sizes, large content libraries, and large audiences associated with compelling rich media content. Limelight is the content delivery network of choice for over 1,000 companies, including many of the world’s top Internet, media and entertainment companies, including Microsoft Xbox LIVE, Sony Playstation 3, Akimbo, Amazon Unbox™, Belo Interactive, Brightcove, “BuyMusic” @ Buy.com, DreamWorks, LLC, Facebook, FOXNews.com, IFILM, ITV Play, MSNBC.com, NC Interactive and Valve. For more information, visit www.llnw.com.

Safe Harbor Act Disclaimer: All forward-looking statements contained in this release are made within the meaning of and pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements other than statements of historical facts, including but not limited to statements concerning the performance and scalability of Limelight Networks' CDN, notably its ability to deliver large, rich media streaming events, and other statements concerning the plans, intentions, expectations, projections, hopes, beliefs, objectives, goals and strategies of management. Forward-looking statements are not guarantees of future performance or events and are subject to a number of known and unknown risks, uncertainties and other factors that could cause actual results to differ materially from those expressed, projected or implied by such forward-looking statements. Accordingly, there can be no assurance that the results expressed, projected or implied by any forward-looking statements will be achieved, and readers are cautioned not to place undue reliance on any forward-looking statements. The forward-looking statements in this press release speak only as of the date hereof and are based on the current plans, goals, objectives, strategies, intentions, expectations and assumptions of, and the information currently available to, management. The Company assumes no duty or obligation to update or revise any forward-looking statements for any reason, whether as the result of changes in expectations, new information, future events, conditions or circumstances or otherwise.