boomerang : boomerang is a piece of javascript that you add to your web pages, where it measures the performance of your website from your end user's point of vie...
iPlotz : Wireframing, mockups and prototyping for websites and applications
localForage : localForage is a handy library that improves the offline experience of your web app by using asynchronous storage (via IndexedDB or WebSQL where avail...
A collection of simple recommendations for decent Web application frontends
