Softimage

3d Photorealistic Rendering
Provides resources for Softimage XSI and 3D users, including videos, classes, tutorials, utilities, plugins, scripts, shaders, and models.
http://www.edharriss.com/

Highend3d.com
A high end 3D resource and community web site for Alias PowerAnimator, Maya, Softimage, Sumatra, and Renderman users.
http://www.highend3d.com/

Softimage Surface Continuity Manager Tutorials
Five tutorials by Jeremy Birn that cover a multi-patch approach to NURBS modeling, which allows NURBS to be assembled into a seamless "quilt" of multiple NURBS surfaces, which together define a complex organic form.
http://3drender.com/ncf/index.html

Softimage User's Site and Mailing-List Archive
Providing resources for Softimage users, including learning resources, tutorials, a knowledge base index and the mailing-list archive, the Archive archives all 9 of the SI-related mailing lists in a web browsable and searchable format.
http://archives.itg.uiuc.edu/softimage/