ATLANTA, GA – (September 18, 2007) – Internap Network Services Corporation (NASDAQ: INAP), a global provider of end-to-end Internet business solutions, today announced its Flow Control Platform (FCP) technology has been adopted by customer HostMySite.com, a Newark, DE–based Internet technology company. Selected for its automated, intelligent routing, Internap is helping HostMySite.com to improve user experience for its customers.

The 10Gbps FCP box allows HostMySite.com to granularly manage and improve on network performance while reducing costs, increasing customer response time and enhancing user experience. Through Internap’s FCP technology, HostMySite.com enjoys automated route optimization, allowing the Web hosting company to focus on their core business offerings.

“In our business, customer support is critical,” said Darrell Hyde, director of network operations for HostMySite.com. “We guarantee our customers 100 percent satisfaction, and working with Internap helps to ensure that. We confidently rely on Internap to help us keep our business moving forward.”

Since deploying Internap’s FCP technology, HostMySite.com has been able to transcend the traditional, manual methods of network optimization to reduce latency and packet loss and decrease Internet routing issues. In addition, Internap’s technology enables HostMySite.com to track traffic trends across its customer base, allowing the company to identify additional opportunities for growth and expansion of current offerings. The additional value added to HostMySite.com’s offering as a result of Internap’s solutions has enhanced customer satisfaction as well.

“Our complete suite of services and technology is a critical component of our customers’ success,” said Tim Sullivan, chief technology officer for Internap. “We are thrilled our solutions help support HostMySite.com, one of the most important Web hosting providers on the market, and are pleased our customers can realize measurable improvements across their business when they rely on our expertise and comprehensive technology.”

Internap’s customized FCP technology solutions are configured to route based on cost, performance and application. Scalable on demand and renowned for improving transfer speeds, the FCP also features robust reporting tools for tracking comprehensive network performance data over multiple service providers.

About HostMySite.com
Founded in 1997, HostMySite.com is a privately held provider of high quality affordable web hosting services. With a combination of sophisticated hosting technology and applied business knowledge, HostMySite.com provides individuals, small businesses, and large corporations with affordable web hosting solutions and managed dedicated servers supported by an unwavering commitment to customer service. HostMySite.com service includes 24x7 customer support through toll-free telephone, e-mail, and live online chat. The company is based in Newark, DE and can be reached at www.HostMySite.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.