Faster alternative to Ramda in just 10kB
A platform for running scripts on many browsers
198 byte publish/subscribe messaging micro-framework
Checks if the current page is visible or not
Peer-to-peer networking with browsers
Timeago is a jQuery plugin that makes it easy to support automatically updating fuzzy timestamps (e.g. "4 minutes ago").
Google Analytics on Steroids. A Google Analytics implementation with more power features.
Knockout.js observable arrays get smarter