Bing Ads and SEO are two different marketing channels. While both concentrate on bringing in traffic to your site, the main difference between the two is the cost. Bing Ads is paid while SEO is organic (non-paid). Organic results are absolutely free, non-paid conversions or results on your website (meaning traffic, clicks, sales, ranking, etc). Paid results are those that you pay for each click, visit, or conversion, which encompasses Google, Facebook, and LinkedIn ads. Neither is better than the other because they both work towards different ends. And actually, both can bring unbelievable results when combined!