If parenting is the world's most difficult job, why don't kids come with an instruction manual? Asha Dornfest wondered and came up with the answer: Parent Hacks, a collective blog with daily tips for raising kids. Thanks to recent reporting from Google, we know that this was the answer that 12,900 moms and dads subscribing worldwide were waiting for. If you are rearing a rugrat or two, subscribe today for advice from the experts--fellow parents. 02/22/07