What the Hell is a Data Extension? – ExactTarget Demystified Ep 1

What the Hell is an ExactTarget Data Extension?

In this 1st Episode of The ExactTarget Demystified Video Series, I’ll unravel the mystery of Data Extensions in 1 minute. What is a data extension? How can it be used? What does it do?
https://storyports.wistia.com/medias/2skv6yjfid?embedType=async&videoFoam=true&videoWidth=1200
There is also a ton of additional information at the links here specifically around when a list or a data extension is most useful:

• https://wiki.memberlandingpages.com/en/documentation/exacttarget/resources/solution_guides/using_a_list_versus_a_data_extension/
• https://www.exacttarget.com/blog/do-i-use-a-list-or-a-data-extension/