Excellent description of naked selling. This is isn't a trade for the beginner, heck most time not a trade for the vets. It takes maintenance to put these trades on. Most of the time it's just not worth the risk.
An easier play than selling naked it to enter into a debit or credit spread. Spreads are a great play because you define your risk and know the potential profit right from the entry of the trade.
For anyone trading options please get this book, Options as a Strategic Investment by Lawrence G McMillan.
I have been trading options for years and still turn to this book on a weekly basis, it has all the dynamics of options trade, what why how when who.