I started out in Psych, then bus admin Marketing, then web development, SEO, Social etc....  Marketo gave me the ability to use all of these disciplines.  Early in my dev days at an agency I worked at, I created an in house email marketing application that we used for our clients (this was prior to constant contact and Mailchimp and all of the other free/low cost options), that earned me the tile of SPAM Master Jay.  If somebody told me 15 years ago that my career would revolve around a tool that is heavily based on email marketing, i would have laughed at them.  Both I and the industry have come along way.

Looking forward to where the industry is going!