JOINT FILING AGREEMENTJoint Filing Agreement • February 14th, 2008 • Edison Venture Fund Iv Lp • Services-prepackaged software
Pursuant to Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934, each of the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of shares of stock of Vocus, Inc. This Agreement may be executed in any number of counterparts, each of which shall be deemed an original.
