Marvin King is an assistant professor of political science at the University of Mississippi and writes the blog King Politics, linked above.
You can click on this map to enlarge by a big factor.
You can see that the states where whites voted in big proportion for Obama are these :
Oregon, Washington, Maine, Vermont, Massachusetts.
You can see shades of color for other States where Whites voted heavily for Obama.
And other states where Whites did not want Obama as President ( The Deep South ).