Having looked at well over 1,000 course web sites in the course of mapping photo tours, I developed the "inverse website-exclusivity doctrine" that states that:
The more exclusive the club, the less content their website.
At the top of the list, places like Pine Valley, Seminole, San Francisco GC, Chicago GC, Indian Creek... have no website. If you need to ask.... (SFGC's e-blackout I particularly admire as an FU to the Silicon Valley crowd).
The next tier, places like National Golf Links, offer limited but useful information like directions (which would be sooo hard to find).
The next tier, like the Exmoors of the world (not to pick on anyone), provide useful guest information, like that club's specific cell phone restrictions and guidance on baseball cap protocol.
Finally you get to clubs that actually have a web presence. These, obviously, you don't crave to play.