OK, here is a hidden message for you to solve: Coffeecup has hidden ten grand in 24k bars somewhere in the world. They have been publishing "hints" now for a week, so that involves, in my book, a hidden or "concealed" message, so that's basic to secret writings and the balliwick of this Cryptography Steganography forum. And, no, i'm not advertising for this company, but somewhere in our 120,000 members there should be a sherlock that can unlock the clues and collect the gold! I just checked and there has been no winner for the past 6 days. You gotta register to get to the clues, but Coffeecup is real tight with their address list and don't flood you with junk. Goood luck!
http://www.coffeecup.com/treasure/