give structure to the bottom third of the webpage

[socialhack]

return to the blue background and this layout, e.g. http://grab.by/PWoo and put each of these sections under its own heading establishing a sense of chronology e.g http://grab.by/PWos and http://grab.by/PWoy. If you could think of some headlines for each of those sections, I could take a second pass and submit new text as a pull request (I shouldn’t mess with html).