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Hiom, D.: SOSIG : an Internet hub for the social sciences, business and law (2000)
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Jacobs, M.: Criteria for evaluating alternative MEDLINE search engines (1998)
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- Medical reference services quarterly. 17(1998) no.3, S.1-12
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Wegner, J.: Recherche online : Ein Handbuch für Journalisten (1998)
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Kleinz, T.: Konkurrenz für Wikipedia : Google bastelt an Wissensportal - Autoren sollen Anteile an Werbeeinnahmen erhalten (2007)
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- Footnote
- Vgl. auch: http://www.fr-online.de/in_und_ausland/wirtschaft/aktuell/?em_cnt=1259345&. - http://www.googlewatchblog.de/2007/12/14/google-knol--zukuenftige-konkurrenz-fuer-die-wikipedia/ - http://www.googlewatchblog.de/2007/12/14/google-soon-to-enter-online-encyclopedia-market/