After collecting the emails of current and past customers, the next easiest way for small businesses to build their email list is to integrate email conversion into offline operations. Most small businesses have offline operations, whether that includes direct traffic to a brick and mortar store, client cold calls, customer support or any number of process that take place outside the internet. An opportunistic marketer should use these interactions as a way to grow their email list.
In this context, I guess each post can’t be thought of in isolation, but in terms of a mini content ecosystem that comprises of a great blog post optimised for on-page SEO, an upgrade to that post tailored for that specific content, various on-page email conversion points including an exit pop-up or similar -and then you combine all this with your off page link building and outreach efforts. That could be over 5,000 words of content all in just that one package.