A co-worker and I were talking today. She's interested in math, but feels she did poorly in it in school. From what she described, it was poor teaching at the university level -- she had a run of bad luck with her instructors.
She doesn't want to take a math course, but she would like to (my words) be exposed to mathematical thinking. I've recommended John Allen Paulos and Gerd Gigerenzer to her, but it strikes me that a blog she could follow would be just perfect: small columns that used something real-world to illustrate a mathematical concept.