A lot of OS X users are familiar with Growl, a customizable notification system with all kinds of uses. New e-mail, iTunes track changes, new instant messages -- Growl handles all of this stuff. Now there's a Growl-like jQuery plugin called jGrowl that lets you apply the same sort of notification in your browser window.jGrowl supports different animation settings, as well as sticky messages that need to be clicked to close. The styling appears to be done with CSS, so plenty of customization should be available. If you're looking for a way to notify that's not obtrusive and doesn't require a pop-up window that steals attention from your site, give jGrowl a try.
