Paul Spudis refers us to "25 Good Reasons to Go to the Moon," by Ken Murphy from Selenian Boondocks via Out of the Cradle.
Darnell Clayton, writing at The Moon Society Blog earnestly and openly writes:
"Dear NASA, It's Luna or nothing (including Mars)"
Responses to his "Case for a Lunar Base" are picked up by Transterrestrial Musings.
Which, in turn, reminds us to download and re-examine: NASA's Exploration Systems Architecture Study 630 pages, (pdf) 2006, HERE.