CASE STUDY | YELL | UK YELL AMAG TECHNOLOGY SYMMETRY ™ SYSTEM MANAGES SECURITY CENTRALLY Yell is a leading international directories business, operating within the classified advertising market in the United Kingdom, the United States, Spain and Latin America. The best known products and services include Yellow Pages, Business Pages and the online advertising website Yell.com. Yell began life in 1966 as a ‘Yellow Pages’ section

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