Online marketing has changed so much over the years. The only constant thing that remains is that you need generate qualified traffic and ultimately conversions at the lowest possible cost.
Here are just a couple of the things that have changed in the last 4 years:
I offer SEO (Search Engine Marketing) along with all the other online consultant & services such as social media marketing & consultancy, remarking and pay per click campaigns. This will increase your organic search and subsequent profit line.