Mashups

Very few are people who did not hear about Mashups, another Web 2.0 terminology.

Mashups is a web application which combines data from multiple sources into a single tool [SOURCE]
There are different types of Mashups: Consumer mashups, Data mashups, and Business mashups. [DETAILS HERE]
Ex. Google Maps

Difference between Mashup and Portal: There are quite a few, all listed diligently on Wiki here.
Never knew that individual content on Portal is called Portlets!

Google has got a editor which will help quick creation of web applications and Mashups. It is called Google Mashup Editor. Currently, it is given out only to developers. So all do not have ready signup as yet. One needs to request for a spot, which is given when next available, by signing up here.