Pursuant to the terms of the merger agreement between the two companies, the expiration date of the tender offer may only be extended in increments of no more than 10 business days each. The extension supports the review of the Premerger Notification and Report Form (the "HSR Notification and Report") Blackbaud refiled under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the "HSR Act") with the Department of Justice last week and the completion of the waiting period which began upon refiling.

Computershare Inc., the Company's transfer agent and depositary, has indicated that 18,940,443 shares of Convio common stock were issued and outstanding as of 5 p.m., New York City time, on April 17, 2012. The depositary has indicated that, as of that time, 14,607,096 shares of Convio common stock (approximately 77.1% of Convio's shares issued and outstanding) had been tendered into and not withdrawn from the offer. As of that time, 43,245 shares of Convio common stock had been tendered pursuant to guaranteed delivery procedures.