Housing links

No, I won't tell you where this is. Don't ask. 

General housing links and some speciality information too

VRBO
HomeAway
AirBnB
All the Rooms
Boutique Homes
Welcome Beyond
Private Islands
Unique Home Stays (GB Site)
Luxury Link
Tripping
Kid and Coe
Luxury HomeAway (snobs!)

Skaneateles, Ny

Hotelnumbers.com
OneFineStay
Wimdu
Mr. & Mrs. Smith

Speciality
Get a boat!
Unique Lodges @ National Geographic: Probably too expensive, but a girl can dream
Plans Matter

Regional
Red Cottage (Catskills, Hudson River Valley): Lots of fun to browse
Watershed Cabins (Smokey Mountains, NC)
Greybeard Rentals Asheville

Interesting Links:
You're diving deep. You want to stay somewhere historical. You want National Geographic to weight in. 
An oldie but goodie list of National Geographic Interesting Hotels/Motels of Note

I can't help it. I'm a point whore.
Marriott