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Ingentaconnect offers one of the most comprehensive collections of academic and professional research articles online - some 4.5 million articles from 13,500 publications. ingentaconnect provides researchers with online access to the full text of electronic articles, through online purchase of individual articles, or through subscriptions to publications.
The Questia library contains books and journal articles on subjects such as history, philosophy, economics, political science, English and literature, anthropology, psychology, and sociology. It also includes magazine and newspaper articles.
Pay-Per-View offers instant, full-text access to an extensive collection of journal articles, Online Book chapters, reference work articles and Current Protocol units without the need for a subscription. This service allows anyone to purchase access to individual documents directly by using a credit card. Access is instant and available for 24 hours.