> The photo-3d list people maintain a different list sell-3d for > commercial postings.
That was a long time ago and I'm trying to remember why I did that. I think it was for two reasons. The primary reason was that the main list was overloaded with a horrendous amount of traffic. A secondary reason was for the convenience of those who were primarily buyers and sellers. We also spun off tech-3D because of complaints from general readers about "math heads" overloading the list. Before we spun off the lists, we allowed "informational" posts regarding current and new products, but that wasn't enough for the wheelers and dealers who wanted to move very quickly with their resales. On another list, we tried subject-line prefaces. If you were posting something for sale, your subject began with FS: If you had a technical post, it began with TECH: or CALC: Then with a good mail tool, one could sort a single list's posts by subject line into bins. I thought this approach worked exceptionally well, though unfortunately, some posters had difficulty remembering to add a preface. John B
