A mashup is just as it sounds—the mashing of two or more applications into one. The most common mashup examples usually involve plotting some information onto a map using Google Maps, which we'll look at later in this chapter. Map mashups include everything from the "Top 10 beaches with WiFi access" (
http://www.geekabout.com/2007-01-18-78/top-10-beaches-with-wifi-internet-access.html) to real-time train locations (
http://www.mackers.com/projects/dartmaps/) to indications of global incidents (
Regardless of the type of mashup you're using, in most cases, your mashup will involve taking data you've collected yourself, or data you've retrieved ...