It's difficult to quantify how much your data, freely shared on Facebook, can be worth to brands who anticipate every move One healthy intestine courtesy of a US transplant centre : $1,206,800. Having the same centre insert a new heart: $997,700. Opting for the heart/lung combo-pack: $1,248,400. Sharing your donor status on Facebook: priceless. Or so the social network, which on Tuesday added an ...