Look at the different search engines (sources) that drive traffic to your site to determine where you want to invest your resources. For example, if you're getting an overwhelming amount of visitors and revenue from a particular search engine, that's an obvious source of profitable traffic and an area in which you might want to make further investment; but you might also find another search engine that delivers only a few visitors, but ones who represent a very high Per Visit Value. In this latter case, you might want to increase your spend in that area to drive more of those high-value visitors to your site.
Organic search is extremely important for online retailers, as many studies suggest it drives around 50% of website traffic. When it comes to search engine optimization for eCommerce, marketers get obsessive about testing all methods available to them to try and achieve higher rankings. The logic is very simple: higher positions on SERPs automatically result in higher impressions and a significantly better click-through rate. More people visiting your store should ultimately translate into better conversions and higher revenues.
Now, it is not that these sites are not interested in Google users. In fact, they have hired us to help them increase their share. However, they are getting so much traffic from sites like Facebook that it seems there is less urgency about attracting this traffic and less willingness to change the site to meet organic standards. Not long ago, sites would urgently and unquestioningly abide by Google’s standards to court that traffic.