Contributor

Con·trib'u·tor noun One who, or that which, contributes; specifically, one who writes articles for a newspaper or magazine.
Found on http://www.encyclo.co.uk/webster/C/150

Contributor

An entity responsible for making contributions to the resource
Found on http://en.wikipedia.org/wiki/Glossary_of_history

contributor

[n] - a writer whose work is published in a newspaper or magazine or as part of a book
Found on http://www.webdictionary.co.uk/definition.php?query=contributor
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