Consider the following tips when rolling up your sleeves for optimizations in the Google Display Network.
from Blogger http://evangelinagius.blogspot.com/2015/03/optimizing-for-adwords-display_31.html
from Blogger http://evangelinagius.blogspot.com/2015/03/optimizing-for-adwords-display_31.html
from Blogger http://evangelinagius.blogspot.com/2015/03/optimizing-for-adwords-display_27.html
from Blogger http://evangelinagius.blogspot.com/2015/03/optimizing-for-adwords-display.html