1. USA Credit Cards - http://www.creditcards.com/
2. USA Balance Transfer Cards - http://www.creditcards.com/balance-transfer.php
3. USA 0% APR Cards - http://www.creditcards.com/0-apr-credit-cards.php
Banks:
1. USA Bank's Interest rate - http://www.bankrate.com/
Insurance:
1. USA Home/Mortgage Loan's Interest rate - http://www.bankrate.com/mortgage.aspx