Free cash flow is a non-GAAP financial measure that the Company defines as Adjusted EBITDA less purchases of property, plant, and equipment and capitalization of software development costs.

Consumer category includes net revenues from stationery and greeting cards, photo books, calendars and photo-based merchandise, photo prints, and the related shipping revenues. Consumer also includes net revenues from advertising and sponsorship programs.

Enterprise category includes net revenues primarily from variable, four-color direct marketing collateral manufactured and fulfilled for business customers.

Average Order Value (AOV) is defined as total net revenues (excluding Enterprise) divided by total orders.

The foregoing financial guidance replaces any of the Company’s previously issued financial guidance which should no longer be relied upon.

Fourth Quarter and Full Year 2012 Conference Call

Management will review the fourth quarter and full year 2012 financial results and its expectations for the first quarter and full year 2013 on a conference call on Tuesday, February 5, 2013 at 2:00 p.m. Pacific Daylight Time (5:00 p.m. Eastern Time). To listen to the call and view the accompanying slides, please visit http://www.shutterfly.com. In the Investor Relations area, found in the "About Us" section, click on the link provided for the webcast, or dial 970-315-0490. The webcast, as well as a podcast, will be archived and available at http://www.shutterfly.com. A replay of the conference call will be available through Tuesday, February 19, 2013. To hear the replay, please dial (404) 537-3406, replay passcode 88660359.

Non-GAAP Financial Information

This press release contains certain non-GAAP financial measures. Tables are provided at the end of this press release that reconcile the non-GAAP financial measures to the most directly comparable financial measures prepared in accordance with Generally Accepted Accounting Principles (GAAP). These non-GAAP financial measures include non-GAAP gross margins, non-GAAP operating income (loss) and the related operating income (loss) margins, adjusted EBITDA and free cash flow. For more information, please see Shutterfly's SEC Filings.

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