Watch the Modes: Scale Pattern Approach online guitar lesson by Jeff Scheetz from Street Theory for Guitarists
The other way to view the modes on the neck is by looking at the 7 patterns of the major scale going up the neck. These are not only the patterns of the major scale, but they're all the patterns of the modes as well! So, if you learn these 7 patterns you will know ALL 7 patterns of each of the 7 modes! That is huge! Take the time to go over this lesson and soak in all the ways you can look at this - it will totally take your modal knowledge all over the neck.