In an effort to make it easier to install the latest proprietary graphics drivers in Ubuntu, a new official PPA was released today.
Currently, the PPA ships Nvidia drivers only (and it's not clear if it will include other packages like AMD drivers, etc.) and is considered in testing.
In a message posted on the Ubuntu Desktop mailing list, Jorge O. Castro notes that currently there's no difference between this and the xorg-edgers PPA and that "the real fun begins when new drivers are released".
The PPA supports Ubuntu 16.10, 16.04, 15.10, 14.04 and 12.04.
To add the PPA, use the following commands:
sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt-get update
and then use Synaptic / Ubuntu Software Center to install the Nvidia driver version you want to use. Also, make sure you read the PPA description!