U.S. tax payers will be receiving economic stimulus checks a.k.a. tax rebate checks starting today. You are supposed to take this money and blow it on something like cool computer gadgets. This in theory will help bolster the U.S. economy. The money will be paid out on a schedule which will be determined by the last two digits of your social security number and whether or not you filed your 2007 tax return electronically or by paper. You must have filed your 2007 tax return by April 15th otherwise you will be paid last after everyone else that filed on time. Here is the schedule of when money will be paid out (the U.S. government recently moved up the schedule 1 week from what is listed in the schedule below):

Official IRS notice of the tax rebate payment schedule is available here.