Everyone knows that Search is important. So is understanding traffic sources. The trick is learning to combine the two in order to draw shoppers to your site. According to to eMarketer, holiday e-commerce is set to reach an estimated $72.41 billion, growing 16.1% for this year. Want a slice of this profitable pie? The key to boosting site visits and conversions is to focus on both search and referrals, as most online shopping traffic comes from both of these sources.