ATLANTA, GA – (March 12, 2008) – Internap Network Services Corporation (NASDAQ: INAP), a global provider of end-to-end Internet business solutions, announced today that advertising technology provider TruEffect has adopted Internap’s Performance IP™ and data center colocation services to serve ads through its groundbreaking, patent-pending DirectServe™ solution. The combination of TruEffect’s innovative ad delivery systems and Internap’s network and data center solutions provides maximum reliability to advertisers deploying personalized campaigns via the Internet.

According to industry analysts at The Yankee Group, Internet advertising will more than double to $50.3 billion in 2011 from $21.7 billion in 2007, driven by technology investments that will boost online ad performance. TruEffect’s technology solutions empower advertisers across the globe with exclusive control over their interactive campaigns, while ensuring consumers receive relevant ads from companies they know and trust, maintaining their privacy from third-party servers. With users routinely deleting cookies to protect themselves from a barrage of unwanted ads, TruEffect is redefining what it is to be an ad server. Unique to other ad-serving technologies, the company’s DirectServe solution delivers ads from an advertiser’s established domain. This differentiates TruEffect from other ad-serving companies that utilize proprietary domains, which prevent advertisers from leveraging their own campaign data. Internap’s IP and data center solutions, based on its patented route-optimization technology, enable interactive companies like TruEffect to reliably deliver Internet applications to audiences worldwide.

“As advertisers dedicate more of their budget toward interactive marketing than ever before, Internap is integral to our success in delivering ad campaigns across the Web to capitalize on this uptake,” Ron Hill, president and CEO of TruEffect. “The addition of Internap’s Performance IP network and international data center colocation will enable TruEffect to achieve portal certification which is a key requirement for delivering our clients’ advertisements to high-traffic sites like MSN and Yahoo!.”

Internap’s online business solutions, including its high-performance IP and route-management technology, enables TruEffect to automatically bypass network congestion points. Internap’s industry-leading 100% performance service-level agreement (SLA) gives TruEffect the confidence to roll out interactive Internet advertising for the most demanding clients. Finally, the company’s carrier-class data center facilities provide TruEffect with the customized space and power needed to accommodate the rapid growth of Internet advertising.

“TruEffect is leading the online advertising industry with its innovative solutions, which promise its customers transparency and reliability for the best return on their online ad spend,” said Philip N. Kaplan, chief strategy officer of Internap. “As enterprises ramp up their online advertising spend and new businesses are launched based on content monetization strategies, TruEffect guarantees maximum revenue from the value of online content, while ensuring the highest-quality, rich media experience for the end user.”

About TruEffect
TruEffect, a provider of next generation advertising technology, offers the first advertising solution enabling interactive marketers to have exclusive control of their online campaign data, helping them to create a direct relationship with customers and seamlessly incorporate customer data into the overall marketing ecosystem. Headquartered in Broomfield, CO, TruEffect is based on patent-pending technology designed for advertisers investing more in interactive marketing and looking to manage Internet ad campaigns more efficiently and with greater control. Its SafeServe™, TruAdvertiserXLS™ and DirectServe products are used by leading Internet marketers. TruEffect is a Microsoft Certified Partner. For more information visit www.TruEffect.com.

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.