Here's a compilation of web sites that compile beautiful user interfaces:

People Who Know What The Heck They're Talking About -- This is Bret Victor's web site. Focus on his research topics. -- Nice Photoshop aesthetic. -- Focused on ID more than UX, but great designers nevertheless.

iPhone Web Apps (HTML5) -- Great gallery presentations.

Aggregated Lists


Apple iPad

User Interfaces (Web)*

Tables (Web)

*I'm not saying all of these are pretty, in fact quite the opposite for some. But it's more to get inspiration about applying dashboard-type functionality to a mobile tablet app