One of the best places to find compelling stories and characters is public spaces. Like, say, the bus. Launched a decade ago by a San Francisco State class assignment, the Muni Diaries blog quickly grew into a multimedia mini-empire. Now it’s known as San Francisco Diaries, the newly-rebranded brainchild of one-time journalism major Eugenia Chien and former local newspaper reporter Tara Ramroop, who produce a website, live shows and a podcast, all dedicated to stories about living in San Francisco. This week, Eugenia and Tara join the GrottoPod to share their own San Francisco stories, their roles as journalists, emcees and editors, and why they chose to expand their focus beyond “transit stories” and tales of “shoulder humpers” and cigarette-smoking personal bus drivers.