Reference Desk 610.902.8537
SRDS Media Planning & Buying Calculators for SRDS calculations
Nielsen for Radio rankings. You may have to join the site.
Gaebler's Resources for Entrepreneurs lists the cost of advertising on selected radio stations.
Media Buying and Planning Calculations-- Ratings, Shares, HUTs and PUTs
HUT (Homes Using Television)
PUT (Persons Using Television)
HUT x Share = Rating (HH)
Rating (HH) / HUT = Share
Rating (HH) / Share = HUT
Library Hours
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Fri 8am-5pm
Sat Closed
Sun 12pm-6pm