Windows software

stitching software

Panorama Tools is a high quality and free panorama stitching software package.

They a hard to used on its own, but Hugin(free), PTAssembler(shareware) and PTGui(shareware) provide easy to use graphical user interfaces for them.

Both [PTGui] and [PTAssembler] provide easy to use windows installers.

See the Panorama Tools project at sourceforge for more Panorama Tools related software.

Anything else?

photoshop plug-ins

There are some in the original distribution by Helmut Dersch

viewers

can somebody please link to Fulvio's viewer and other tools?

PTLens

Thomas, how do we fit your wonderful tools in this space? they are not directly used to create panoramas but they are sure part of the family!