Here is another link I found for a free bed runner pattern.
http://www.joann.com/static/project/1208/293759P40.pdf

This site will give you the dimensions for runners and she also has a picture of the runner she made and how she did it

http://hangingonbyaneedleandthread.b...explained.html

I always look at a bed runner or even table runner as just a section of a quilt with blocks. .there is also the prayer shawl books are available with all these different project ideas.