Best way to monetize parked domains?

Hi,
Have a question for the Gurus out here.
The company I work for has several hundred registered domains that are sitting idle on their name servers- no content, no websites. Just registered domains pointing to a single "parked page".
The collectiive traffic is 1-2 thousand visitors/day. Probably from random visitors.
Can anyone suggest the best way monetize these domains without building hundreds of unique sites?
I was thinking to set these domains up and have them point to a page that generates domain keyword related content, using a PHP script or something, but I’m not sure if this is possible or within most PPC program’s conditions.
Any ideas that won’t get them booted from Adsense or most other PPC’s ?
What are other companies with a bunch of parked domains doing?
Thanks in advance to all!

Original post by alherd