ABI/INFORM Complete -Business and economics articles with wide coverage but emphasis on companies, management, trade and industry. Includes many scholarly (academic) journals and studies of advertising and marketing.
Academic OneFile - Articles in many topics/fields: a good source for Communication studies. Includes many scholarly journals among the millions of articles.
Communication Abstracts -Articles specifically about Communication research and scholarship.Fewer articles, but more that are likely to be relevant for Communication studies.
Lexis - Nexis Academic - Newspapers, wire services, and legal articles and documents (e.g. court cases). Good for politics and current events and journalism sources.
PAIS -Public Affairs Information Service: articles about politics, including government documents. Good source for public policy issues and controversies.
PsycInfo & PsycArticles - Psychology articles including clinical studies and research. Good source for quantitative research studies.
Sage Premier -Articles from scholarly journals published by Sage: emphasis on social issues and questions ranging from business to anthropology and sociology. Includes Communication journals.
Sociological Abstracts - Articles in Sociology and related fields including Communication. Primarily scholarly.