Tooltips are a commonly used as a GUI element that contains more information about the object currently being focused on.
They have high preference in UI design, as they essentially allow the user to have access to more information, without much demand (if any) for visual space within the webpage or application, as they typically overlay existing content. < View example >
Automatic Search Suggestions - AJAX
AJAX provides a way for a user to exchange data with a server & update the page currently being viewed, without having to reload the page. < View example >
League of Legends Rune Calculator - Full Applications
Here's a small application that was built in Flash Builder 4, making use of several features such as Mouse Events, XML ArrayCollections and List manipulation. < View example >
Providing alternative feedback rather than the standard context menu on a right click introduces additional interaction possibilities for content. < View example >