Other resources

Here are some other useful 3270 and IBM mainframe resources:

h3270 is a tool that allows IBM host access from within a web browser. It is based on s3270.

Valerio Di Giampietro maintains an AS/400 and Linux page which uses s3270.

py3270 is a Python interface to s3270 and x3270.

Donald Whittemore's ibmjunkman page has a marvelous collection of punched card images.