how do i add extra content to my site?

Learn how to utilize extra content within your extra content enabled themes at: http://extracontent.info/ I tend to recommend the Stacks plugin page which allows one to drag and drop text/images very easily into an Extra Content Stack while being able to add the "spacing/margin" you need. More information on this technique can be found at the preceding site .
      *Extra Content area 1 is utilized in the banner area.
      **Extra Content area 5 is utilized for the social icons as seen throughout the preview site next to the slogan area.
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      Extra Content area 2 is set within a 960px container just below your banner and just above your content. The icons above are images dropped into the extra content area above the text you are reading at this moment.

Heading I

Lorem ipsum dolor sit amet, sapien platea morbi dolor lacus nunc, nunc ullamcorper. Felis aliquet egestas vitae, nibh ante quis quis dolor sed mauris. Erat lectus sem ut lobortis, adipiscing ligula eleifend, sodales fringilla mattis dui nullam. Ac massa aliquet.

Heading II

Lorem ipsum dolor sit amet, sapien platea morbi dolor lacus nunc, nunc ullamcorper. Felis aliquet egestas vitae, nibh ante quis quis dolor sed mauris. Erat lectus sem ut lobortis, adipiscing ligula eleifend, sodales fringilla mattis dui nullam. Ac massa aliquet.

Heading III

Lorem ipsum dolor sit amet, sapien platea morbi dolor lacus nunc, nunc ullamcorper. Felis aliquet egestas vitae, nibh ante quis quis dolor sed mauris. Erat lectus sem ut lobortis, adipiscing ligula eleifend, sodales fringilla mattis dui nullam. Ac massa aliquet.

Heading IV

Lorem ipsum dolor sit amet, sapien platea morbi dolor lacus nunc, nunc ullamcorper. Felis aliquet egestas vitae, nibh ante quis quis dolor sed mauris. Erat lectus sem ut lobortis, adipiscing ligula eleifend, sodales fringilla mattis dui nullam. Ac massa aliquet.
Heading V
Lorem ipsum dolor sit amet, sapien platea morbi dolor lacus nunc, nunc ullamcorper. Felis aliquet egestas vitae, nibh ante quis quis dolor sed mauris. Erat lectus sem ut lobortis, adipiscing ligula eleifend, sodales fringilla mattis dui nullam. Ac massa aliquet.
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      Extra Content area 3 is set within a 960px container just below your banner and just above your content. The icons above are images dropped into the extra content area above the text you are reading at this moment.
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      Extra Content area 4 is set within a 960px container located in your footer area. Feel free to take advantage of Cataract and add a number of content types in your footer area.