ToolTipまとめのまとめ
17 Beautiful and Fresh jQuery Tooltip Plugins
http://medleyweb.com/web-dev/17-beautiful-fresh-jquery-tooltip-plugins/
25 Useful Resources for Creating Tooltips With JavaScript or CSS
35+ Cool jQuery Tooltip Plugins for Interactive Designs
http://www.tripwiremagazine.com/2012/12/jquery-tooltip-plugin.html
10 Awesome Free jQuery Tooltip Plugins
http://www.websanova.com/tutorials/jquery/10-awesome-jquery-tooltip-plugins
jQuery UI Tooltip
Twitter Bootstrap tooltip
http://twitter.github.com/bootstrap/javascript.html#tooltips