Answer:
In terms of finding out the routing number for a bank, I don't think you will find a website that gives a comprehensive listing. There are printers, however, that are licensed to publish routing number information. If you have a routing number and you need to find the corresponding bank, you can often just enter that number into Google and it will come up with the bank.
[Editor's note: The printed ABA Key to Routing Numbers is available in the BOL Banker Store, here.]
First published on BankersOnline.com 7/28/08