Effective July 1, PW's offices will be located at 360 Park Ave. South, New York, N.Y. 10010, at the corner of Park Ave. and 26th St. We'll be on the 13th floor. Our main phone number will be (646) 746-6400. While the area code and three-digit prefix are changing, the four-digit extensions for PW staffers will remain the same. Our e-mail addresses are also changing, with @cahners.com being replaced by @reedbusiness.com, although e-mail sent to the old domain will continue to be delivered for one year.