All about Private Mortgage Insurance (PMI) by one of my favorite lenders, Jeannie Bolger of Suburban Mortgage.
It's not a pretty looking link, but it IS helpful. Trust and click.
Jeannie BolgerSenior Loan OfficerNova Home Loans2525 E Camelback Rd #600
Phoenix, AZ 85016P: 602/ 550-8674F: 602/ 224-4842E: JeannieB@NovaHomeLoans.com