People Who Know What The Heck They're Talking About
http://worrydream.com -- This is Bret Victor's web site. Focus on his research topics.
http://www.uiparade.com -- Nice Photoshop aesthetic.
http://www.mnml.com -- Focused on ID more than UX, but great designers nevertheless.
iPhone Web Apps (HTML5)
http://cssiphone.com -- Great gallery presentations.
User Interfaces (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