>>What's a PPM?<< Personal People Meter. Arbitron's hand-held electronic device for audience measurement. Reputedly more accurate than diaries. We'll see. :-) Sid Schweiger IT Manager, Entercom Boston LLC WAAF - WEEI AM/FM - WMKK - WRKO - WVEI AM/FM 20 Guest St / 3d Floor Boston MA 02135-2040 Phone: 617-779-5369 Fax: 617-779-5379 E-Mail: sid@wrko.com