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What is Selective Dissemination of Information in library services?

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British Museum: Reading Room — library Reading Room of the British Museum, designed by Sidney Smirke in collaboration with Anthony Panizzi and built in the 1850s. Illustration by Smirke, from the *Illustrated London News*, 1857.

Selective Dissemination of Information (SDI) is a current-awareness service provided by libraries to help patrons stay informed about new materials relevant to their specific interests.

In this process, librarians conduct regular searches of databases to identify new articles or resources that match a pre-established user interest profile. The results of these targeted searches are then forwarded directly to the patron.

In modern electronic environments, this concept has evolved into automated systems. These computer programs scan networked resources, such as electronic mail and bulletin boards, to automatically select items that align with a user's profile. This allows individuals to efficiently keep up with vast amounts of information without the need to manually sift through irrelevant material.1