If the view from your hotel window is an important part of your travel planning you'll want to check out Rooms With Great Views, a website devoted to cataloguing the impressive views from hotel windows around the world.
At Rooms With Great Views (RWGV), you can browse entries in a sequential blog interface to get an idea of scenic places you may want to travel or search using a Google Maps mashup to cherry-pick entries from locales you'll be visiting. You can also browse by country, city and region to save yourself the swooping around in Google Maps.
RWGV catalogues everything from high-rise hotel views to rural cabins. If you're visiting an unlisted locale or hotel, snap a few pictures to expand the database. Rooms With Great Views is a free service and requires no registration. Have a favourite travel tool for finding great hotels? Let's hear about it in the comments.