a very large historical archive, often from advertising, "to provide for all levels of possible viewer a visually orientated taxonomy of the ways in which pictures are used to tell stories." unique collection, also useful for many other purposes
a social networking site in which BBC offers cultural reviews, with clips, and readers comment or write alternative reviews; readers also submit own reviews
D. Wild, A. Grove, M. Martin, S. Eremenco, S. McElroy, A. Verjee-Lorenz, und P. Erikson. Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research, 8 (2):
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E. Koumans, R. Johnson, J. Knapp, und M. Louis. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 27 (5):
1171--1180(November 1998)PMID: 9827265.
M. Feuer, L. Towne, und R. Shavelson. Educational Researcher, 31 (8):
4(2002)“For example, when well-specified causal hypotheses can be formulated and randomization to treatment and control conditions is ethical and feasible, a randomized experiment is the best method for estimating effects” p. 8.
J. Carroll, G. Chin, M. Rosson, und D. Neale. Proceedings of the 3rd conference on Designing interactive systems: processes, practices, methods, and techniques, (2000)