 A chunk of code that you can imbed in an existing envronment  Differences › Resides: desktop or web › Embedding: any page or application or limited › Runs: your machine or server  Let’s add some to a web page

 Resources › ›  Let’s add some to a web page ›

 Customizable homepage of gadgets › Gadgets = widgets › Specific to iGoogle  If it has what you want…

 Visible aggregation: access to multiple web sites or functions  Collection of individual pieces  Tools exist but often “roll your own”

 Aggregation of information presented cohesively  Dynamic information  Should not be able to tell that it is a mashup! 