jQuery Image Drag plugin like Facebook Cover Picture and Thumbnails. Allows images to be positioned using mouse drag just like Facebook cover pictures and thumbnails.
This widget lets you search for users to @mention in your posts. It works very much like Facebook and Google+ in that it supports users with spaces in their name. It writes to a hidden field with the user ID's formatted in this way: @[12345] while showing @username in the input box. You can save the encoded string for easier parsing at display time.
WebAudioRecorder.js is a JavaScript library that records audio input (Web Audio API AudioNode object) and encodes to audio file image (Blob object). It supports three encoding formats.