Frank Warren initially started this as an interactive art piece. PostSecret is a blog in which people anonymously submit their secrets on handmade 4 x 6 inch postcards via snail mail. Although some of the submissions are very humorous, others are very sad and some politically incorrect. Not only does the work evoke strong sentiments or even memories from the audience, but it also provides an outlet for those that feel the need to free themselves from their secrets. New secrets are posted every Sunday.