Longtime listeners of this show know that Dan and Ian spent the early part of their entrepreneurial career building product businesses online.What you might not know is that Search Engine Optimization, commonly referred to as SEO, was one of the first skillsets that they learned when building those businesses.A lot has changed in the last decade when it comes to SEO, and this week's guest seems to be at the forefront of that progress.Tim Soulo is the Chief Marketing Officer and Product Adviser for Ahrefs. Ahrefs is a Software-as-a-Service company that provides a suite of incredibly useful SEO research tools. Their website is also host to one of the best SEO blogs on the internet.On this week's episode, Tim shares some keen insight on the evolution of SEO and how you can make SEO work for your business. We'll also be exploring some of the darker sides of SEO and content marketing.