ATLANTA, GA and DALLAS, TX – (March 6, 2008) – Internap Network Services Corporation (NASDAQ: INAP) (“Internap”), a global provider of end-to-end Internet business solutions and SoftLayer Technologies, Inc. (“Softlayer”), a rapidly growing and innovative supplier of on-demand hosting services, announced the signing of a 5-year $40 million contract under which Internap will deliver data center colocation, route-optimized IP networking and content delivery network (CDN) services. These Internap services will expand SoftLayer’s on-demand hosting infrastructure to the Eastern United States and be seamlessly integrated with SoftLayer’s data centers in Dallas and Seattle. Reflecting SoftLayer’s success in the marketplace, this new agreement is in addition to the 5-year $16 million contract announced by the two companies on November 13, 2007 (http://www.internap.com/about/newsroom/page2983.html).

"Internap and SoftLayer are bringing to the market a new, tightly coupled managed hosting model that is delivering enterprise-class, large-scale computing by the slice,” said Lance Crosby, chief executive officer at SoftLayer. “With Internap we’ve been able to get to market faster and deliver higher quality solutions that our customers value and are core to their business operations. The combination of Internap’s world-class IP networking, data center colocation and content delivery network (CDN), along with SoftLayer’s innovative product development, flexible deployment and automation tools, creates and delivers the most advanced on-demand hosting services available today.”

SoftLayer is a true leader and innovator in the hosting industry. The network-within-a-network architecture implemented across SoftLayer’s data centers allows customers to replicate data, optimize application availability and ensure business continuity. The SoftLayer customer portal, on-demand IP manager and application programming interfaces (APIs) provide new levels of visibility and control to provision and manage IT infrastructure server and storage elements. Additionally, Softlayer’s IP network connectivity, automated load balancing, server recovery, and storage and backup solutions provide customers the confidence that applications, data and content will be available to drive business operations.

“SoftLayer and Internap have rapidly and successfully deployed a powerful, on-demand hosting infrastructure to support enterprise applications, rich media and online business,” said James P. DeBlasio, chief executive officer at Internap. “The demand for these services has been very strong and is driving us to expand the model across the United States leveraging Internap’s network and data center solutions and SoftLayer’s innovative Web hosting products, exceptional service delivery and automated operations. Together, we will be able to deliver a robust set of enterprise-class IT solutions to a broader marketplace than ever before.”

Since the company was founded in 1996, Internap has forged a unique, high-performance ecosystem for IT managed services. At the core of this ecosystem are Internap’s Performance IPTM network, content delivery network (CDN) and MIRO (Managed Internet Route Optimizer) technology that continuously monitors the performance of the Internet and automatically selects the best route. These network assets are seamlessly integrated with Internap’s data center space and high-density power systems to deliver a best-of-breed hosting and network service for applications, media content, data and Web transactions all backed by an industry-leading 100% service level agreement (SLA).

About SoftLayer
Headquartered in Plano, Texas, SoftLayer delivers next generation webhosting and on-demand datacenter services located in Dallas TX and Seattle WA. Utilizing proprietary software, coupled with the industry's first network-within-a-network topology, the company delivers unprecedented power and control to securely manage IT environments while providing unparalleled scalability. For more information please visit www.softlayer.com or call 866.398.7638.

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.