I just received a plain yellow postcard (postmarked Springfield, MO) in the mail that read:

   <<I NEED YOU>>
   Could you use an extra $500 per month by working two hours per day?
   Tap into it right now and learn how you and other's can fire your boss in 100 days
   For more information visit:
   www. LeaveYourJobNow . com or
   Call Andrew @ 1-239-257-4578

(then badly handwritten beneath all this...)

    CALL NOW: 641-715-3900 EXT: 230188

Fwiw, I'd been responding to job openings on Craigslist.  The CL ads looked legit, except they didn't provide a company name.  Wondering if this is where these guys got my address....?