Kelvin Newman — Graph Theory
The Link Graph, the Social Graph, the Knowledge Graph... So much of digital marketing has a relationship with Graph Theory, but unless you studied Maths or Computer Science the topic may have completely passed you by, but once you get your head round how it works you will have a much better understanding of how the search engines work now (and will in the future).
Buy in bundle
SearchLove London 2013 Conference Videos (sl-ldn-2013-videos)