The online Journal of Opinions, Ideas & Essays is an excellent venue for showcasing works on topics both inside and outside academia. 

Go to the JOIE website to learn more—including how to offer a submission—and to peruse recent publications, including "How to Fix Broken Toast and Other Food Adventures" by Louise Mendelkoch, and "Enfranchising the Future: Politics on Behalf of our Descendants" by UMRA member Chip Peterson.