Apps without an interface
Unheap is a really nice and tidy repository of jQuery plugins
Sitepoint has this good tutorial on understanding the process of story boarding for a mobile application (iOS). Can this work for the web too?
Check out these set of CSS3 cheat sheet animations for your website today. They’re even cross browser supported, including IE
Batch is a lovingly designed and crafted suite of 300 icons for web and user interface design. Download it now