Wikipedia, the world’s online trove of collective knowledge, is in the midst of a international extortion scandal, where editors secretly charged businesses and artists a fee to create and “protect” articles. The Wikimedia Foundation, the non-profit organization that sponsors but does not operate Wikipedia, announced Monday that at least 381 accounts have been suspended for “black hat” editing, in which editors charge and accept money for “to promote external interests.” The scam affects English Wikipedia, which boasts 4.9 million articles, has over 26 million users, and 1,343 administrators, according site statistics.