It would probably be difficult for the developers to keep track of changing drivers and locations, since third party vendors are not generally committed to working with the Linux community.
On the other hand, perhaps a sticky article with a list of known working drivers and their current locations will be better for the user community.
Here is my contribution to such a potential article:
My printer is an all in one Canon MP210 and its drivers (as well as the scangearmp program to drive the built-in scanner) are found here (at the moment):