GitHub - pupunzi/jquery.mb.balloon: A jQuery plug-in to add a balloon tip to any element; content can be a simple string, a DOM element or AJAX content.
20 Stylish and Modern jQuery Tooltip Plugins | Learning jQuery
jQuery.balloon - add balloon tips to elements
設置が超簡単でカスタマイズ性の高い吹き出しホバー用jQueryプラグインjquery.balloon.js - URIN HACK
40+ Useful Tooltips Scripts with CSS, JavaScript, and jQuery - Hongkiat