Investor Presentation

Safe Harbor Statement QuinStreet These slides and the accompanying oral presentation contain "forward-looking statements" within the meaning of Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical facts in these slides and the accompanying oral presentation, including statements regarding our future financial condition, business strategy and plans and objectives of management for future operations, are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as "believe," "may," "might," "objective," "estimate," "continue," "anticipate," "project," "intend," "will," "should," "could," "plan," "future," "expect," "predict," "potential," or the negative of these terms or other similar expressions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including, but not limited to, our immature industry and relatively new business model, the impact of changes in industry standards and government regulation, our ability to manage our growth effectively, our dependence on Internet search companies to attract Internet visitors, our ability to successfully manage any future acquisitions, our dependence on a small number of large clients and our dependence on a small number of client verticals for a majority of our revenue and a number of other factors out of our control, that may cause our business, industry, strategy or actual results to differ materially from the forward-looking statements. These risks and uncertainties may also include those discussed under the section titled "Risk Factors" and elsewhere in the Company's annual reports of Form 10-K and quarterly reports of Form 10-Q on file with the Securities and Exchange Commission, and other factors that may not be known to us. Because forward-looking statements are inherently subject to risk and uncertainties, some of which cannot be predicted or quantified and some of which are beyond our control, you should not rely on these forward-looking statements as predictions of future events. The events and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Except as required by law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise. ALL MATERIALS CONFIDENTIAL 2

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