I’m a big fan of tooltips and popovers – widgets that provides contextual information on demand. I see them all over the place but I didn’t find one in YUI that I particularly liked, so I wrote my own.

If you use YUI 3 for front-end development, you can now take advantage of Y.Tipsy and Y.Popover. They’re available on YUI Gallery.

Head over to Github to check out some examples.