I basically work on websites and do outside promotion in order to gain organic, online traffic–the best form of traffic online. Why is this the best form of traffic? Because when someone searches for something they already have the intent to buy or find the thing that they want, as opposed to interruption marketing (which I also love) that just hits you with a billboard and such.
The kind of SEO I did is sort of different than your average SEO person. I fix things, I optimize them, but I also incorporate interlinking heavily, but not too heavily.