http://www.alliemae.org/homeequityexplanation.html
http://dictionary.reference.com/browse/mortgage
http://www.uwsa.com/mortgage.html
http://www.uwsa.com/what-is-mortgage-insurance
http://www.bankrate.com/finance/mortgages/how-much-house-can-you-buy--1.aspx
http://www.homeloanlearningcenter.com/MortgageBasics/MortgageTypes.htm
http://www.mortgageloan.com/refinance-basics