The present invention is a system and method for personalization and engagement by passive connection. A unique connection, a unique campaigner landing page and a unique constituent landing page are first provisioned in a connections database. Data that is sourced from the campaigner landing page is then associated with the unique connection. The constituent landing page is then personalized in response to a combination of the data just received and the data already collected at that point in the unique connection. Then data that is sourced from the constituent landing page by passive connection is associated with the unique connection. The constituent landing page is then further personalized in response to a combination of the data collected from the campaigner landing page, the data collected from the constituent landing page and the data in the unique connection.