Its not a bad idea, one of the problems with looking up hotel websites is that you get a couple of photos of rooms if you’re lucky, and no real sense of the hotel or resort itself. Some people revert to looking at review sites like tripadvisor or even Flickr for more “real” images of a hotel.
What a few hotels and resorts have started doing is releasing videos which give a better sense of the experience you will get at the resort, via YouTube. Of course sometimes guests do too and those aren’t always so glowing.
One of the better series I’ve seen is the ones by InterContinental. From the absolutely stunning photography of the ones from French Polynesia to the more practical guided tours by their Concierge in Bali, these YouTube videos are a good way to give potential guests a better feeling for the resort or hotel.