There are many socalled Content Management systems, but first, can you tell what's wrong with the very clear and very accessible and very free (included in Windows) system of folders and subfolders.
Kees
Hello everyone! Please help!
I need a way to organize the hundreds of files my company produces. We build data recorders for aircrafts and as you can imagine, we have a lot of documents that need to be organized in a way that they can be quickly accessible. I would prefer a low-cost open source solution. I hope you can help. Thanks in advance.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic