The Modern Language Association (MLA) is a scholarly association dedicated to modern language. They publish a wealth of resources for those involved in languages and literature.
The Society of Professional Journalists describes themselves as "the nation’s most broad-based journalism organization, dedicated to encouraging the free practice of journalism and stimulating high standards of ethical behavior."
Linked below, you'll find both the SPJ's core ethical code, as well as their homepage for more detailed information about particular ethical policies.