Elvis is making quite some money. In 2000 he made an estimated $35 million, $15 million of it from Graceland admissions. This makes Elvis' the most earning dead person. Charles Schultz, creator of "Peanuts", is second with $20 million plus, since his death in February. A little less was earned by John Lennon ($20 mln).
Source: Forbes / Updated: Mar 2, 2001