<https://techcrunch.com/2008/04/15/adroll-emerges-from-private-beta-with-co-op-economics-for-blog-advertising/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://techcrunch.com/2008/04/15/adroll-emerges-from-private-beta-with-co-op-economics-for-blog-advertising/>