Curated list of awesome lists
A collection of awesome Polymer resources
Iron Iron elements are a set of visual and non-visual utility elements.
Paper Paper elements are a set of visual elements that implement Google's Material Design.
Google web components
Gold The gold elements are built for e-commerce use-cases like checkout flows.
Platinum Elements to turn your web page into a true webapp, with push, offline, and more.
App Elements that enable building full web apps out of modular custom elements.
Data A collection of data/storage related elements.
Layout A collection of layout related elements.
[Obsolete] Neon Neon elements implement special effects.
Polymer Projects A list of websites and apps built with Polymer
Other awesome resources
If you want more awesome resources, check the awesome list!