PTgui - PTGui is panoramic stitching software.
DMD Panorama - HD 360 Panoramic Camera In A Snap
Hugin - Hugin is an easy to use cross-platform panoramic imaging toolchain based on Panorama Tools.
Ztitch - Ztitch is a freemium standalone panorama viewer and maker that allow you to create beautiful 3D scenes and share them with your friends.
PanoramaStudio - PanoramaStudio can create seamless 360 degree and wide angle panoramic images.
The Panorama Factory - Create panoramas that rival those made by rotational and swing-lens panoramic cameras.