There are alot of places that archive mac data already. and the files you have on floppy might not be shareware. If it is, thats good. if you wanted to share it with some site, all of it must be compressed with stuffit, or similar, so that the resource fork is also included in the containter, since PC's do not understand the resource forking of the mac's files metadata.
Then I guess another question would be, is the software for PPC, 68k, or earlier? I have several 5 1/4 floppys filled with software for my Apple II/C. but non is shareware - i believe that software would pre-date any idea of shareware.
Apple does do a good job of offering alot of their software and even their old Operating System for download on their ftp site. I had obtained Apple OS 7.5 from the Apple ftp site. Unlike Microsoft, which would never offer even their Windows 1.0 for free downloading off their site.
But i do not run Old Version, so i can not say if they would offer Mac software on this site. Maybe Ablix will answer your post. guess you will just have to wait and see.