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PubGrade provides context-sensitive advertising services to STM publishers. The services aim to target advertising campaigns in ways that assert maximum relevance of ads to the audience. To accomplish that, PubGrade uses persistent and session cookies, but will never store personally-identifiable information. The information gathered helps optimizing, targeting and tracking advertising campaigns across multiple websites. It may include e.g. browser version, operating system, screen resolution, geographical information, date and content of pages requested. PubGrade may engage in cooperations with service providers who host their servers outside of the EU to enable individual service features and provide the best possible performance to its partners.
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BioMed Central uses so-called social plugins ("plugins")of the social networking site facebook.com provided by Facebook Inc., 1601 S. California Ave, Palo Alto, CA 94304, USA ("Facebook"). The plugins can be identified by one of Facebook’s logos (white "f" on blue tile or a "thumps-up"-sign) or by the additional text "Facebook Social Plugin". The list of Facebook Social Plugins and their appearance can be accessed via: http://developers.facebook.com/plugins.
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Due to the integration of the plugin Facebook collects the information that a user is visiting the corresponding website. If the user is logged in on Facebook at the moment he or she visits the website, Facebook may be able to connect the visit on the website to the user’s Facebook account. If the user interacts with the plugin – for example if he or she presses the like button or comments on something – the user’s browser transmits this information to Facebook. Facebook stores this information. If a user is not a member of Facebook, Facebook may collect and store the user’s IP-address. Facebook states that it only collects anonymized IP-addresses in Germany.
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Further information can be found in Twitter’s privacy statement under: https://twitter.com/privacy.