tipsheet

noun

1. A page or mailing of information and hints

   “A gross-gutted, bulb-nosed, bourbon-stanky Boston flatfoot in plain clothes wrinkled white sox, with a race track tip-sheet stuffed in his back pocket trying real hard to mingle unnoticed at an elegant Buddies "do" to glean inside-dope.”

   “A website called Debt Proof Living launched a daily email tipsheet last summer which now has 100,000 subscribers.”