The following are some of the best databases for marketing research.
Mintel Reports: Provides market and consumer research across multiple International markets and US categories. Each study provides a synthesis of both primary and secondary data and analysis.
eMarketer: Covers market data, statistics, and analysis on the Internet, e-business, online marketing, media, and emerging technologies.
Passport: Covers over 350 markets in 207 countries, with four modules: statistics (data and forecasts on consumer lifestyles, retailing, countries, consumer markets), analysis, companies, and sources.