Links:
[1] http://www.aspira.org/en/user/login?destination=comment/reply/417%23comment-form
[2] http://www.choosetosave.org/calculators/
[3] http://www.japersonalfinance.com/gsjapf/activities/page3.jsp?key=Activity3Page1
[4] http://www.credittalk.com/budget101/creditcalc.html
[5] http://www.aba.com/Consumer%2BConnection/CNC_pfin.htm