David Warren started a website that receives secrets sent to him on postcards . He says the site is the most popular secret - free blog . When secrets are shared publicly , they can help unite people , he says . They come anonymously on artful postcards from all over the world . Warren : The site has received half a million secrets since its launch in 2004 .
David Warren started a website that receives secrets sent to him on postcards . He says the site is the most popular secret - free blog . When secrets are shared publicly , they can help unite people , he says . Warren : The site has received half a million secrets since its launch in 2004 .