About Internap

Internap Reports First Quarter 2008 Financial Results

Record revenue of $62.1 million, an increase of 15.9 percent as compared to the first quarter of 2007;
Adjusted EBITDA(1) of $9.6 million, an increase of 21.7 percent as compared to the first quarter of 2007;
Adjusted gross margin(1) of 49.5 percent, an increase of 300 basis points as compared to the first quarter 2007; and
GAAP net income of $0.7 million or $0.01 per diluted share.

ATLANTA, GA – (May 7, 2008) Internap Network Services Corporation (NASDAQ: INAP), a global provider of fast, reliable, end-to-end Internet business solutions, today reported first quarter financial results delivering record revenue and expanding year-over-year margins. The Company also provided an updated forecast of total revenue and adjusted EBITDA margins for the full-year 2008.

“Internap posted another quarter of record revenue. While we continue to see encouraging metrics across our business units, the net impact of the customer credit issues at the end of 2007 and reductions to our customer count have delayed our revenue ramp a few months and caused us to lower our forecast for 2008," said Jim DeBlasio, president and chief executive officer. “We have made significant changes across the organization to improve operational execution. These changes give us better visibility into our business lines, bring us closer to our customers, and will ultimately increase returns on Internap’s differentiated portfolio of assets.”

As a result of the slower growth levels achieved in our first quarter, the Company revised its forecast for the full-year 2008 and now expects to generate revenue growth of between 13 and 18 percent over 2007 and adjusted EBITDA margins of between 17 and 20 percent of total revenue. Capital expenditures are forecasted to remain between $45 and $50 million for 2008.

Total revenue in the first quarter 2008 increased 15.9 percent to $62.1 million, up from $53.5 million in the first quarter of 2007. Compared to the fourth quarter of 2007, total revenue increased $0.4 million or 0.7 percent. Data center footprint expansion and pricing strength were the primary contributors to the year-over-year revenue growth. Solid traffic growth and a full quarter of CDN revenue also drove the year-over-year increase. Sequentially, data center and CDN revenue growth were partially offset by a decline in IP services revenue, which was higher in the fourth quarter, due in part to one-time systems integration sales to a large customer.

GAAP net income for the first quarter of 2008 was $0.7 million, or $0.01 per diluted share compared to a net loss of $10.7 million or $0.26 per diluted share the same quarter last year. Normalized net income(1) and normalized net income per diluted share(1), which exclude the impact of certain non-recurring items and stock-based compensation, was $3.1 million, or $0.06 per diluted share for the first quarter 2008. Normalized net income(1) increased 14.1 percent compared to the first quarter 2007 while normalized net income per diluted share(1) was unchanged at $0.06 cents.

Internap’s adjusted gross margin(1) grew to 49.5 percent in the first quarter of 2008, up 300 basis points from 46.5 percent in the first quarter last year. Adjusted gross margin(1) declined 40 basis points sequentially, a decrease from 49.9 percent in the fourth quarter of 2008. The Company reported adjusted EBITDA(1) of $9.6 million for the first quarter of 2008, an increase of $1.7 million, or 21.7 percent, from same quarter last year. Sequentially, adjusted EBITDA(1) decreased $0.5 million or 4.5 percent. Adjusted EBITDA margin(1) expanded 70 basis points over the same quarter last year to 15.4 percent in the first quarter 2008.

The Company ended the first quarter with 3,749 customers under contract, a net decline of 40 customers compared to the fourth quarter of 2007. Approximately 150 customer disconnects that occurred before year end were believed to be associated with previously-disclosed CDN service interruptions that occurred in the second half of 2007. This quarter’s new customers included RealNetworks and Alienware.

Internap's updated outlook for full-year 2008 financial results includes:
-- Full year revenue growth of 13 – 18 percent over 2007;
-- Full year adjusted EBITDA(1) in the range of 17 to 20 percent of total revenue; and
-- Full year capital expenditures in the range of $45 - $50 million.

(1) Reconciliations between GAAP information and non-GAAP information contained in this press release are provided in the tables below entitled "Reconciliation of Net Income (Loss) to Adjusted EBITDA," "Reconciliation of Net Income (Loss) and Basic and Diluted Net Income (Loss) Per Share to Normalized Net Income and Basic and Diluted Normalized Net Income Per Share" and "Reconciliation of Gross Margin to Adjusted Gross Margin." This information is also available on our Web site under the Investor Services heading.

Conference Call Information:
Internap's first quarter 2008 conference call will be held today at 5:00 p.m. EDT. Participants may access the call by dialing 877-440-5803. International callers should dial 719-325-4878. Listeners may also connect to the simultaneous webcast available from the investor relations section of the Company’s web site at http://ir.internap.com/events.cfm. A replay of the call will be accessible from Wednesday, May 7 at 8 p.m. EDT through Tuesday, May 13 at 888-203-1112 using the replay code 8942256. International participants can access the archived call at 719-457-0820 with the same access code.

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.

INTERNAP NETWORK SERVICES CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)

Three Months Ended

March 31,

2008

2007(2)

Revenues:
Internet protocol (IP) services $ 31,124 $

29,316

Data center services 25,185 18,098
Content delivery network (CDN) services 5,744 2,052
Other 4,068
Total revenues 62,053 53,534
Operating costs and expenses:
Direct costs of network, sales and services, exclusive of depreciation and amortization shown below:
IP services 11,290 10,340
Data center services 18,124 14,305
CDN services 1,949 663
Other 3,321
Direct costs of amortization of acquired technology 1,229 653
Direct costs of customer support 4,365 3,388
Product development 2,291 1,255
Sales and marketing 8,829 6,189
General and administrative 8,003 7,832
Restructuring and asset impairment 11,349
Acquired in-process research and development 450
Depreciation and amortization 5,381 4,912
(Gain) loss on disposals of property and equipment (16 ) (4 )
Total operating costs and expenses 61,445 64,653
Income (loss) from operations 608 (11,119 )
Non-operating (income) expense:
Interest income (701 ) (693 )
Interest expense 310 223
Other, net 81 2
Total non-operating (income) expense (310 ) (468 )
Income (loss) before income taxes and equity in earnings of equity method investment 918 (10,651 )
Provision for income taxes 251 50
Equity in (earnings) of equity-method investment, net of taxes (72 ) (6 )
Net income (loss) $ 739 $ (10,695 )
Net income (loss) per share:
Basic $ 0.02 $ (0.26 )
Diluted $ 0.01 $ (0.26 )
Weighted average shares used in per share calculations:
Basic 49,110 40,997
Diluted 49,330 40,997

2 Revenues and direct costs of network sales and services, exclusive of depreciation and amortization, for the three months ended March 31, 2007 have been reclassified to conform to the current presentation.

INTERNAP NETWORK SERVICES CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except per share amounts)

March 31,

2008

December 31,

2007

ASSETS
Current assets:
Cash and cash equivalents $ 49,850 $ 52,030
Short-term investments in marketable securities 12,429 19,569
Accounts receivable, net of allowance of $5,124 and $5,470, respectively 32,956 36,429
Inventory 502 304
Prepaid expenses and other assets 10,445 8,464
Deferred tax asset, current portion 749 479
Total current assets 106,931 117,275
Property and equipment, net of accumulated depreciation of $170,421 and $165,543, respectively 70,596 65,491
Investments 8,085 1,138
Intangible assets, net of accumulated amortization of $25,482 and $23,921, respectively 41,448 43,008
Goodwill 190,677 190,677
Restricted cash 2,127 4,120
Deferred tax asset, non-current 2,610 3,014
Deposits and other assets 3,497 2,287
Total assets $ 425,971 $ 427,010
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Notes payable, current portion $ 3,667 $ 2,413
Accounts payable 18,150 19,624
Accrued liabilities 8,589 10,159
Deferred revenue, current portion 3,765 4,807
Capital lease obligations, current portion 833 805
Restructuring liability, current portion 2,051 2,396
Other current liabilities 110 108
Total current liabilities 37,165 40,312
Notes payable, less current portion 16,121 17,354
Deferred revenue, less current portion 2,842 2,275
Capital lease obligations, less current portion 233 452
Restructuring liability, less current portion 7,389 7,697
Deferred rent 11,567 11,011
Deferred tax liability 515 398
Other long-term liabilities 849 878
Total liabilities 76,681 80,377
Commitments and Contingencies
Stockholders' equity:
Preferred stock, $0.001 par value, 200,000 shares authorized, none issued or outstanding
Common stock, $0.001 par value; 60,000 shares authorized; 50,257 and 49,759 shares issued at March 31, 2008 and December 31, 2007, respectively; and 50,234 and 49,759 shares outstanding at March 31, 2008 and December 31, 2007, respectively 50 50
Additional paid-in capital 1,210,532 1,208,191
Accumulated deficit (861,271 ) (862,010 )
Accumulated items of other comprehensive income 114 402
Treasury stock, at cost, 23 shares at March 31, 2008 (135 )
Total stockholders' equity 349,290 346,633
Total liabilities and stockholders' equity $ 425,971 $ 427,010

INTERNAP NETWORK SERVICES CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

Three months ended

March 31,

2008 2007
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss) $ 739 $ (10,695 )
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Asset impairment 2,454
Acquired in-process research and development 450
Depreciation and amortization 6,610 5,565
Gain on disposal of assets (16 ) (4 )
Provision for doubtful accounts and billing adjustments 655