Ambient user experience relates to the tone and personality of a site. It’s about shaping how users feel and influencing their perception. It’s something additional to a site that is unrelated to how the site functions, and providing it can have a powerful effect on users and their emotional connection with a site.
Here is a list of 7 sites that provide an ambient user experience:
Vimeo’s homepage features an informal and friendly welcome message as well as making use of sky and sun imagery in the background. These features give the site a warm, relaxed and friendly feel.