My friends at Headphone Commute have put out a massive compilation of 87 tracks, over 6 hours of music. It's called "...and darkness came."
I'll quote from their site :"Headphone Commute is incredibly proud and honored to announce a colossal benefit compilation, with 100% of the proceeds being donated towards two charitable organizations, Doctors Without Borders and The Humane Society, to help all those affected by Hurricane Sandy!"
Artists include Max Richter, Clint Mansell, offthesky, Julien Neto, Ólafur Arnalds, Dakota Suite, Christopher Willits, Loscil, Lawrence English, Maps And Diagrams, Jóhann Jóhannsson, Nils Frahm, Talvihorros, Bersarin Quartett, Antonymes, Simon Scott, Dustin O’Halloran, Machinefabriek, :papercutz, and many, many, more.
Go here to find out more...http://reviews.headphonecommute.com/2012/11/08/and-darkness-came/