These databases are the best place to begin for sport management topics:

SPORT Discus
(via EBSCOhost)

Citations and abstracts to literature in exercise and sport science, and sport management.

Sports Business Research Network

Market research and industry news covering all facets of the sports industry.

These general databases cover all topics, including sport management:

ProQuest

Full-text articles, citations and abstracts covering all subjects.

Wilson OmniFile Fulltext

Full-text articles, citations and abstracts covering all subjects.

These two databases have full text newspaper articles:

LexisNexis Academic

Hundreds of regional, national, and international newspapers; business publications, and much more.

ProQuest Newspapers

Nine national newspapers including the Los Angeles Times and Wall Street Journal.

These next 3 databases have sport management-related articles from various disciplinary perspectives:

ABI / Inform
(via ProQuest)

Full-text articles, abstracts and citations to publications covering business, management, and economics. Includes full-text of the Wall Street Journal from 1984.

ERIC
(via EBSCOhost)

The most important database in the field of education, with nearly a million abstracts of documents and journal articles on education research and practice. See also the free Gov. ERIC web site.

PsycINFO
(via EBSCOhost)

Citations and abstracts from nearly 2000 publications in the field of psychology and the psychological aspects of related disciplines.