An industry or sector (from Latin industrius, "diligent, industrious") is the manufacturing of a good or service within a category. Although industry is a broad term for economic ...
http://en.wikipedia.org/wiki/Industry

Hospitality industry relationships and professional education activities of the School of Hotel Administration at Cornell University.
http://www.hotelschool.cornell.edu/industry/

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http://dictionary.reference.com/browse/industry

company search * local * regional * national * international
http://industry.com/

Industry Index By Sector: Industry Center - 212 industries including basic materials, conglomerates, consumer goods, financial, healthcare, industrial goods, services, technology ...
http://biz.yahoo.com/ic/ind_index.html