Can you locate any public or internal document that is on the internet or your intranet throughout your company? Once you get past a certain size, the Searchbox REST API makes that possible through access to its search services via the cloud or onsite. The API indexes raw content from a variety of sources.
Mashup software provider JackBe has issued a challenge for folks to come up with a user-friendly (read: non-techie) definition of the term enterprise mashup. Although you won't necessarily earn much money (a $50 Amazon gift card), you will earn the honorary title: Mashup CEO.