http://www.bankrate.com—Offers
a variety of automated present and future value calculations, such as a loan
amortization calculator and a tool that compares rebates and low-rate financing
deals on automobiles
http://www.tcalc.com—Contains
numerous financial calculators that can be purchased and added to a website
http://www.moneychimp.com—Can
try the “How Finance Works” link to learn about many applications
of present and future value mathematics; has a number of useful interactive
graphs