Follow a similar format for all social media posts: Begin with the author’s last name, followed by a comma, his first name, and then a period. Use the full post in quotations. Add the date and time posted with a comma in between, followed by a period and the words “Facebook post.” (or other social media).
For example: “Fitz, Ross. ‘I baked the best cake today. Stay tuned for the recipe.’ 24 May 2012, 2:24 a.m. Facebook post.”