Some good articles to get you started:

Ten Commandments of Running a Successful Martial Arts Business

Are You Spending Your Martial Arts Ad Dollars Wisely?

Why Students Quit

Spotless Marketing

Creating A Business Plan

Boosting Your Martial Arts School’s Income With Merchandise Sales

Budo and Business....Dispelling A Myth
"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin