Digital Island

Prospectus Summary

This summary contains basic information about us and this offering. Because it is a summary, it does not contain all of the information that you should consider before investing. You should read the entire prospectus carefully, including the section entitled "Risk Factors" and our Consolidated Financial Statements and the Notes thereto before making an investment decision. Our fiscal year ends on September 30. Unless otherwise indicated or required by the context, references to years in this prospectus refer to our fiscal years. In this prospectus, Digital Island, "we," "us," and "our" refers to Digital Island, Inc. but not to the underwriters listed in this prospectus.