Postini is the global leader in on-demand solutions that deliver Communication Security and Compliance, protects against increasingly malicious internet-based attacks. Postini's services -- which include message security, archiving, encryption, and policy enforcement -- can be used to protect a company's email, instant messaging, and other web-based communications. Now Google has signed a definitive agreement to acquire Postini. http://www.google.com/intl/en/press/pressrel/postini_20070709.html