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reverse-engineering process; simultaneously, he extracted
the advertisements from the San Francisco Website,
Craiglist (through a method known as Web scraping). The
first mapping mashup resulted from the aggregation of these
two elements: it was named HousingMaps and is still
available online.
Figure 3.1. The HousingMaps application, Paul Rademacher 1
The Mountain View company responded in two stages to
this initiative. First, instead of suing Paul Rademacher for
hacking their platform, they hired him. Second, they
released a mapping API, in June 2005, that enabled
everyone to easily and legally do what Rademacher did with
his mashup. Following the Google's example, many mapping
services published APIs online, e.g. Bing Maps (Microsoft),
OpenSpace
(the
British
Ordnance
Survey ),
Géoportail
(Institut
National
de
l'Information
Géographique
et
Forestière) and OSM.
1 www.housingmaps.com.
 
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