Hi, All,
This article is a little outdated, but I found it very helpful when preparing my application for submission. It is written by a professor, thus showcasing the perspective of adcomms. While geared primarily toward recent college graduates, the author also touches on application suggestions for prospective graduate students who have been out of school for some time.
http://polaris.gseis.ucla.edu/pagre/grad-school.html
Hope it helps!