SAX is not like other download sites, it doesn't provide nice download pages. The site founded 1996 is hard to use, like an old interface to a big database.
Details: SAX is fully automated, provides a mailing list and an rss feed. It doesn't seem to be interesting for end users, but for journalists and reviewers.
Restrictions: No categories except MS-DOS, Windows OS/2, Mac, UNIX and Web.