Public Discourse is the online journal of the Witherspoon Institute (a research center in Princeton, New Jersey). They pay an honorarium of $200 for original essays (1,500 to 2,000 words), first-person stories (800 to 2,000 words), and review/response essays (1,500 to 2,000 words). They pay $50 for book notes (300 to 500 words). For details, visit this page.