Use of non-GAAP financial measures

The non-GAAP data included herein, which exclude certain items as described herein, are non-GAAP financial measures. Our management believes that these non-GAAP financial measures are useful information for investors and shareholders of our company in gauging our results of operations (x) on an ongoing basis after excluding merger and acquisition related expense and reorganization-related charges, and (y) excluding non-cash items such as stock-based compensation expenses, acquired intangible assets amortization, impairment of goodwill and other long-lived assets, changes in fair value of obligations in connection with acquisitions and the corresponding tax effect of those items, as well as, non-recurring changes of non-cash valuation allowance on deferred tax assets. These non-GAAP adjustments either do not reflect actual cash outlays that impact our liquidity and our financial condition or have a non-recurring impact on the income statement, as assessed by management. These non-GAAP financial measures are presented to permit investors to more fully understand how management assesses our performance for internal planning and forecasting purposes. The limitations of using these non-GAAP financial measures as performance measures are that they provide a view of our results of operations without including all items indicated above during a period, which may not provide a comparable view of our performance to other companies in our industry. Investors and other readers should consider non-GAAP measures only as supplements to, not as substitutes for or as superior measures to, the measures of financial performance prepared in accordance with U.S. GAAP. Reconciliation between results on a GAAP and non-GAAP basis is provided in a table below.