ATLANTA, GA – (May 9, 2008) – Internap Network Services Corporation (NASDAQ: INAP), a global provider of end-to-end Internet business solutions, announced today plans to add approximately 15,000 square feet of colocation at a new stand alone 45,000 square foot facility adjacent to its existing Boston data center. The expansion helps the company meet strong customer demand for its bundled Internet solutions. The first phase of completion will become available in the fourth quarter 
of this year.

Infrastructure plans will allow Internap to provide a maximum amount of power and cooling to support a customer’s high-density solutions. This new facility will also take advantage of more environmentally friendly technologies, including ultrasonic humidification, air economizers and circuit level power monitoring, all designed to provide a less energy intensive solution, as compared to previous generations of data centers.

The Boston expansion also provides access to Internap’s Performance IP™ and Content Delivery Network (CDN) product offerings. These premium Internet connectivity and content delivery services enable customers to deploy next-generation Internet applications such as video and rich media.

“This initiative is part of our strategic plan to enhance data center offerings in key markets,” said James P. DeBlasio, chief executive officer of Internap. “With this expansion in Boston, Internap now has its ninth owned facility and a total of 43 colocation service points, demonstrating our commitment to serving our customer’s growth requirements now and in the future.”

About Internap
Internap is a leading Internet solutions company that provides The Ultimate Online Experience™ by managing, delivering and distributing applications and content with unsurpassed performance and reliability. With a global platform of data centers, managed Internet services, a content delivery network (CDN) and content monetization services, Internap frees its customers to innovate their business and create new revenue opportunities. More than 3,000 companies across the globe trust Internap to help them achieve their Internet business goals. For more information, visit www.internap.com.

Internap “Safe Harbor” Statement
Certain information included in this press release constitutes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, including, among others, statements regarding the performance of our products, business strategy, projected levels of growth, and projected costs, are forward-looking statements. Those statements include statements regarding the intent, belief or current expectations of Internap and members of our management team, as well as the assumptions on which such statements are based. Forward-looking statements are not guarantees of future performance and involve risks and uncertainties that actual results may differ materially from those contemplated by forward-looking statements. Other important factors that may affect Internap's business, products, results of operations and financial condition include, but are not limited to: our ability to sustain profitability; 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, network access points or computer systems; the ability to successfully integrate the operations of Internap and VitalStream Holdings, Inc.; and our ability to protect our intellectual property.

Our Annual Report on Form 10-K/A, subsequent Quarterly Reports on Form 10-Q, recent Current Reports on Form 8-K and other Securities and Exchange Commission filings discuss the foregoing risks, as well as other important risk factors that could contribute to such differences or otherwise affect our business, results of operations and financial condition. We undertake no obligation to revise or update any forward-looking statement for any reason.