Internap CDN chosen for sixth consecutive year to help the 2011Sundance Film Festival promote independent films to audiences worldwide through streaming video

ATLANTA – January 27, 2011 – Internap Network Services Corporation (NASDAQ: INAP), a leading provider of IT infrastructure services, today announced that it is an official Content Delivery Network (CDN) provider for the 2011 Sundance Film Festival, held January 20-30 in Park City, Utah. Sundance Institute has relied on Internap’s CDN to simplify and streamline the creation, delivery and management of interactive web content to promote the work of independent filmmakers – both during the Festival and on an ongoing basis – since 2006.

As filmmakers have come to rely on the web as an essential channel to market and distribute their films to audiences worldwide, Sundance Institute has seen a substantial uptick in video downloads. From 2006-2010, the Internap CDN flawlessly served an average of 2.2 million views of Institute content per year and delivered an average of 12 terabytes of data per year. From 2009 to 2010, video views during the Sundance Film Festival increased 76 percent, representing significant year-over-year growth since adopting video streaming as a promotional vehicle.

With its easy-to-use management interface and robust architecture, the Internap CDN has also enabled Sundance Institute to easily make changes to the content available on its sites, support backup and recovery strategies and analyze streaming activity to facilitate planning for future events.

Internap’s CDN is integrated with its advanced Performance IP™ connectivity service to deliver the most reliable and cost-effective infrastructure and ensure an optimized streaming experience. Companies are able to quickly expand their online business by accelerating the global delivery of rich media, video, on-demand software and additional content to mobile or other Internet-connected devices, with the comfort of a 100 percent SLA-backed availability guarantee.

About Sundance Film Festival

Supported by the nonprofit Sundance Institute, the Festival has introduced global audiences to some of the most ground-breaking films of the past two decades, including sex, lies, and videotape, Maria Full of Grace, The Cove, Hedwig and the Angry Inch, An Inconvenient Truth, Precious, Trouble the Water and Napoleon Dynamite and, through its New Frontier initiative, has brought the cinematic works of media artists including Isaac Julian, Doug Aitken, Pierre Huyghe, Jennifer Steinkamp and Matthew Barney. www.sundance.org/festival

Sundance Institute

Sundance Institute is a global nonprofit organization founded by Robert Redford in 1981. Through its artistic development programs for directors, screenwriters, producers, composers and playwrights, the Institute seeks to discover and support independent film and theatre artists from the United States and around the world, and to introduce audiences to their new work. The Institute promotes independent storytelling to inform, inspire, and unite diverse populations around the globe. Internationally recognized for its annual Sundance Film Festival, Sundance Institute has nurtured such projects as Born into Brothels, Trouble the Water, Son of Babylon, Amreeka, An Inconvenient Truth, Spring Awakening, Light in the Piazza and Angels in America. www.sundance.org

For images go to http://press.sundance.org/press.

About Internap

Internap provides high-performance IT infrastructure services that enable our customers to focus on their core business, improve service levels and lower the cost of IT operations. Our colocation, connectivity and managed hosting solutions are differentiated by unparalleled levels of performance, availability and support. Since 1996, thousands of enterprises have entrusted Internap to deliver their business-critical IT infrastructure needs. For more information, visit http://www.internap.com/, our blog at http://www.internap.com/blog or on Twitter http://twitter.com/internap.

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Forward-Looking Statements

This press release contains forward-looking statements. These forward-looking statements include statements related to the features, functionality and performance of our products and services, including our CDN, and the benefits our customers are expected to receive from them. Because such statements are not guarantees of future performance and involve risks and uncertainties, there are important factors that could cause our actual results to differ materially from those in the forward-looking statements. These factors include the actual performance of our products and services; our ability to respond successfully to technological change; the availability of services from Internet network service providers or network service providers providing network access loops and local loops on favorable terms, or at all; failure of third party suppliers to deliver their products and services on favorable terms, or at all; failures in our network operations centers, data centers, network access points or computer systems; our ability to provide or improve Internet infrastructure services to our customers; and our ability to protect our intellectual property, as well as other factors discussed in our filings with the Securities and Exchange Commission. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results. We undertake no obligation to update, amend or clarify any forward-looking statement for any reason.

Internap Media Contact
Mariah Torpey
781.418.2404
internap@daviesmurphy.com

Investor Contact
Andrew McBath
Internap
404.302.9700
ir@internap.com