Except as otherwise expressly provided herein, all notices and other communications provided for hereunder shall be in writing and mailed or delivered, (a) if to Assignor, at the address specified in or pursuant to the Security Agreement (b) if to Assignee, at the address specified in or pursuant to the Security Agreement; or in any case at such other address as any of the persons listed above may hereafter notify the others in writing. All such notices and communications shall be mailed by overnight courier, and shall be effective when received.