While Michael Jackson had tabloids buzzing for the second half of this year, the passing of Heath Ledger last January still leaves many with a hollow feeling. He was a young father whose untimely death left a family, colleagues and countless fans with unanswerable questions.

I know the story has been covered inside and out for a while now, but with Heath Ledger's last movie set for release in the U.S., I felt this cluster of 12 posthumous innovations would be a good way to show that that even though good people pass, their legacy lives on through their accomplishments.

Check out all of the posthumous innovations, from posthumous music vids to Michael Jackson dance tributes.