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     * Click stream data . . . .
     * Gaming-related data . . . .
+Sources of unstructured data
+Exploring sources of unstructured data
+Unstructured data is everywhere. In fact, most individuals and organizations conduct their lives around unstructured data. Just as with structured data, unstructured data is either machine generated or human generated.
+Here are some examples of machine-generated unstructured data:
+  * Satellite images: This includes weather data or the data that the government captures in its satellite surveillance imagery. Just think about Google Earth, and you get the picture (pun intended).
+  * Scientific data: This includes seismic imagery, atmospheric data, and high energy physics.
+  * Photographs and video: This includes security, surveillance, and traffic video.
+  * Radar or sonar data: This includes vehicular, meteorological, and oceanographic seismic profiles.
+The following list shows a few examples of human-generated unstructured data:
+  * Text internal to your company: Think of all the text within documents, logs, survey results, and e-mails. Enterprise information actually represents a large percent of the text information in the world today.
+  * Social media data: This data is generated from the social media platforms such as YouTube, Facebook, Twitter, LinkedIn, and Flickr.
+  * Mobile data: This includes data such as text messages and location information.
+  * Website content: This comes from any site delivering unstructured content, like YouTube, Flickr, or Instagram.