I have worked in the field of internet marketing for the past 6 years now. My experience began at a retail cataloging company where my primary efforts were to merchandise their website with product, optimize the site and run Google Adword campaigns for various products and topics. Since that point, I have moved on to an online technology company where I am primarily responsible for driving traffic to the site through SEO practices mainly dealing with the long-tail of our product offering.
I would not consider myself to be an expert in the SEO field as it is constantly evolving and changing. I would say that, like someone in their late teens and early twenties, I know enough to know that I don't really know much. :) But, I try to stay up to date with the SEO community and am glad to share anything I have learned with those that need the help.