great details (floor/resort plans) for some bali properties
http://e.his-ddd.com/

not sure about accuracy, and not many luxury hotels, but certainly interesting
http://www.room77.com/

taj global rate card
http://www.tajhotels.com/Common_pdf/NewTariff.pdf

virtuoso magazine (bimonthly, change date to access others)
http://www.virtuosolife.com/

unpublished hotel room/contact information
http://www.travelagentcentral.com/

mass market magazine, but has some useful details
http://www.luxuryta.com/

unpublished room breakdowns at japanese hotels
http://www.j-hotel.or.jp/cgi-bin/jho...=13&Page_Num=1
http://www.michitravel.com/

unpublished room breakdowns at (mainly) middle eastern hotels
http://www.cranley.com/

more sites with unpublished rates
http://www.elegant-lifestyle.com/besthotels.htm
http://www.luxe.ru/
http://www.sodis.ru/
http://www.tourparade.ru/prices/ (italy)
http://www.domusasumari.com (italy)
http://www.greece-selection.com/ (greece)
http://www.differentworld.com/ (mexico)

*****

http://www.ensembletravel.com/index.php
http://www.ensembletravel.com/custom...tel_search.php
http://www.ensembletravel.com/static...x.php?page=HEP
looks kinda like Virtuoso. fair number of properties, seems like fewer luxury ones though.

http://www.perfectescapes.com/ another, but no way to tell which properties offer the benefits. actually, looks like a front end for ensemble.

"Signature Hotels and Resorts" and another, with plenty of luxury properties and some confirmed upgrades. they provide a way for each member to publicly display the benefits directory > http://www.signaturetravelnetwork.co...&agency_id=571

http://www.magellanvacations.com/destinations.shtml
kind of like signature/ensemble/virtuoso, except less benefits, and more discounts. (some great discounts) also some confirmed upgrades, although nothing THAT valuable. (montage beverly hills was only one i didnt check.)