Google's recent websites for marketing - this and http://www.themobileplaybook.com/ - really stand out. Their production value is just amazing, and in case of Mobile Playbook, content is great too.
I'm a front end dev, and have worked on some big and gorgeous sites, but damn... I've been working on startups for a couple of years and feel like the web has moved massively in that time... who ever is making this stuff is amazing (although I assume this isn't a single man effort)
They're great if you're using desktop or iOS, but fall short if you use Google's own devices. The mobile playbook serves a phone view to the Nexus 7 tablet, and a broken desktop view to the Nexus 4.
