PMA specializes in global display market information, covering all large-screen display categories: front projectors, plasma and LCD TVs, and rear-projection displays. Their Large-Screen Displays Industry Service family of publications provides detailed worldwide quarterly updates (sell-in data) on large-screen display markets, newsletters on new product announcements and other key industry developments, and annual Web surveys of North American resellers/retailers and end users (including both organizations and individual consumers). Their Large-Screen Displays Tracking Service family of monthly reports offers timely sell-through data on unit sales, street prices, and inventories of large-screen displays sold by leading North American retailers, resellers, and distributors. PMA was established by Dr. William Coggshall, who was previously a co-founder of Dataquest and helped start the syndicated market research business.