The PAL is a library of Ada and VHDL software, information, and courseware that contains over 1 BILLION bytes of material (mainly in compressed form). All items in the PAL have been released to the public with unlimited distribution, and, in most cases (the exceptions are shareware), the items are freeware.
The ASE2 Library contains over 1.1GB of material on Ada and Software Engineering assembled through a collaboration with over 60 organizations. Walnut Creek CD-ROM once sold copies of this library. Nowadays, it is no longer maintained, but is still hosted in the archive.adaic.com server. It may contain useful resources, but it is highly redundant with other libraries.