Wikipedia creator Jimmy Wales has been accused of agreeing to edit a page on the online encyclopaedia in exchange for a donation.
Former Novell chief scientist Jeffrey Merkey says he donated $5,000 to the Wikimedia Foundation in exchange for changes to his Wikipedia entry.
Mr Merkey says Mr Wales agreed to "use his influence" to remove libellous remarks in the entry.
In response, Mr Wales has called the allegations "nonsense".
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