One for the nonfiction writers especially but everyone will benefit, I think. Snopes debunks urban legends, lies and ridiculous social media campaigns by a team of fact-checkers. It is very fast and pretty reliable.
I loved this TED Radio Hour special on storytelling. It includes interviews and TED talks from a Pixar scriptwriter, the author of the historical reimagining The Girl with the Pearl Earring and a book cover artist. "Storytelling is joke-telling."