MICR (Magnetic Ink Character Recognition) is the name of the technology behind those funny numbers and symbols you see at the bottom of cheques.

ASAP Cheques hosts a non-commercial site called the MICR Repository for those that want to learn more about, or contribute information about, MICR and anything else related to cheque printing and processing. The MICR Repository also hosts an e-mail based discussion where people can ask questions about and discuss MICR.