How would one distinguish between an "open source" project like Linux or
Apache or Mozilla, and a LAMP/WAMP program developed by a library and
then made freely available to modify, distribute, etc.

I'm specifically thinking of East Carolina University's "Pirate Source"
(http://systems.lib.ecu.edu/piratesource/) which we have reworked and
rebranded (rather lamely) as Resources by Subject
(http://www.ithacalibrary.com/subjects/), but perhaps MyLibrary would
fall in this category, too.

Is it wrong or inaccurate to refer to the latter sort of program as open
source?  The source code is open, but it seems a quite different animal
from the ever-evolving and distributed development of Mozilla, Linux, etc.

Is there a different/better label for these library-developed
applications, or am I splitting hairs?

Thanks.

Andrew Darby
Web Services Librarian
Ithaca College Library
http://www.ithaca.edu/library/