There is no comprehensive soft-focus resource, especially for small cameras. But here are several sites with information:
+Veijo Vilva and his main site http://galactinus.net/vilva/index.html is an excellent resource for smaller lenses and manual focus lenses. Great photos too.
You can always make your own: http://www.alternativephotography.com/wp/cameras-film/exploring-simple-lenses
http://forum.mflenses.com/ manual focus lenses on modern cameras-- sometimes soft-focus material
Soft-Focus Lenses and Techniques a great summary of lenses and types
Several large-format sites:
http://tonopahpictures.0catch.com/ Jim Galli, the king of large-format soft lenses.
http://www.largeformatphotography.info/forum/ again, big film cameras
http://www.emilschildt.com/EGO-%20objektiver%20-%20alle.htm another user of big cameras
http://www.antiquecameras.net/softfocuslenses.html excellent information on true classic pictorial lenses
http://www.galerie-photo.com/soft-focus-objectif-portrait-flou.html soft-focus lens
http://www.dioptrique.info/sommaire/sommaire.HTM Lens information and database
Pinkham & Smith Visual Quality Motion Picture lens-- 75mm f/3, on Nikon D3
Here you will find information on my use of soft-focus and Pictorialist lenses, and my techniques for mounting, using, and processing images from these lenses in this very digital world.
In addition, I will expound from time to time on the subject of "The New Pictorialism", and the development of a reflective style in current circles. Topics from Google Plus posts will find a home here, and perhaps some relative permanence in the ever-renewing world of social networking.