Latest / Social Media Marketing with Fexingo: Instagram, TikTok, LinkedIn, and Platform Strategy / Why Brands Are Using Social Media for Niche Newsletter Growth
Transcript
- Lucas: So we talk a lot on this show about brands building audiences on social platforms, but there's a growing counter-movement: brands using social media not to keep people on the platform, but to drive them into email inboxes instead. Luna: Yeah, the newsletter renaissance. It's been happening for a few years now, but I think the calculus has shifted recently. Lucas: It really has. The big driver is algorithmic unpredictability. If you've built a million followers on Instagram or TikTok, you still don't know if your next post will reach ten thousand or a hundred thousand. But an email list? That's an owned audience. You control the delivery. Luna: And the engagement rates are usually way higher. Open rates of thirty to forty percent are common for good newsletters, whereas organic social engagement has been dropping for years. Lucas: Exactly. So the smart play for a lot of brands has become: use social content as the bait, and the newsletter as the hook. One of the best recent examples is Morning Brew's spinoff, 'Business Casual.' They launched it in late 2025 and used LinkedIn as their primary growth channel. Luna: What did they do specifically on LinkedIn? Lucas: They posted carousel posts — you know, the swipeable slide decks — with takeaways from each edition. A single carousel might summarize three key trends from that week's newsletter. Then the final slide was a call to action: 'Get the full analysis in your inbox every Tuesday.' They linked to a landing page. No paywall, just an email opt-in. Luna: And that worked? Lucas: Within six months, they hit two hundred thousand subscribers. And their LinkedIn following only grew by about forty thousand in that same period. So the newsletter grew five times faster than the social audience. Luna: That's a huge gap. It suggests the people finding them on LinkedIn were more willing to commit to email than to follow the page. Lucas: Right, because following a page is a low-commitment signal. Giving your email is a higher-intent action. So the social platform became a top of funnel acquisition tool, not the end destination. Luna: I've seen a similar approach work for much smaller brands too. There's a specialty coffee roaster in Portland — I think it's called Heart Coffee — they used Instagram Stories to build their newsletter. Lucas: Oh, I know Heart. What did they do? Luna: They ran a weekly poll in Stories: 'Which single-origin should we feature next? A) Ethiopian Yirgacheffe B) Colombian Huila.' People who voted got a DM with a link to a newsletter signup that included a discount code. They added five thousand subscribers in about three months. No ads, just polls and DMs. Lucas: That's clever because the poll creates engagement and then the DM is a natural, personal follow-up. It doesn't feel like a cold sales pitch. Luna: Exactly. And the discount code acted as the incentive to actually subscribe. Without that, the conversion rate was under two percent. With it, it jumped to about eight percent. Lucas: So the lead magnet — the discount — was critical. That's a pattern we see across platforms. On Twitter, some brands offer exclusive PDFs or cheat sheets. On TikTok, it's often a link in bio that leads to a free resource behind an email gate. Luna: TikTok is interesting because the link-in-bio is the only clickable link for most accounts. So brands have to make that one link count. Some are using tools like Linktree that let them feature a newsletter signup prominently. Lucas: And there's a platform-specific nuance now: Twitter has started integrating newsletter signups directly into tweets. If you have a Substack or a Revue account, you can add a signup button right in the composer. That reduces friction a lot. Luna: LinkedIn also rolled out an article to email pipeline. If you publish a LinkedIn article, you can now include a one-click subscribe button that adds readers to your external newsletter list. Lucas: Right, so the platforms themselves are recognizing that newsletters are a valid destination. They'd rather keep users on-platform, but they're adapting to user behavior. Luna: It makes sense for the platforms too — more newsletter content shared on their sites means more engagement. It's a win-win if the brand plays it right. Lucas: Let's talk about the economics for a second. Building a newsletter list via social media is cheap compared to paid acquisition. Cost per email subscriber from Facebook ads can be two to five dollars. But organic social tactics? Almost zero marginal cost, just time. Luna: But time is a cost too. The Heart Coffee example — someone had to create those polls every week, monitor DMs, send the links. It's not passive. Lucas: No, it's not passive. But the ROI can be substantial. A good newsletter can have a direct revenue impact. Morning Brew's flagship newsletter generates tens of millions in ad revenue. For a small business, a newsletter can drive repeat purchases and reduce dependency on social algorithms. Luna: I've seen data that newsletter subscribers have a lifetime value about three times higher than social media followers, across industries. Because they're more engaged and more likely to convert. Lucas: That aligns with what we're seeing. So the strategy really comes down to three things: a compelling content sample on social, a clear call to action, and a valuable lead magnet. The sample shows what they'll get; the CTA tells them where to go; the lead magnet gives them a reason to hand over their email. Luna: One thing I'd add: the lead magnet doesn't have to be a discount. For B2B brands, it's often a white paper or a template. For media brands, it's exclusive access to a deeper version of content they already liked on social. Lucas: Good point. Business Casual's lead magnet was just the full newsletter itself — the social post was the teaser. So the value prop was clear: 'you liked this snippet, now get the whole thing every week.' Luna: That's the cleanest model. No extra creation required. The newsletter is the product; social is the sampling counter. Lucas: I want to dig into a potential pitfall though. If a brand leans too heavily on social to grow a newsletter, they risk building a list that's too dependent on one platform's audience. If that platform's algorithm changes or the brand gets shadowbanned, the inflow stops. Luna: That's real. Diversification across platforms is key. Don't put all your acquisition eggs in one algorithmic basket. Lucas: And once you have the list, you own the relationship. That's the whole point. So even if Instagram drops your reach to zero tomorrow, you still have ten thousand people you can email directly. Luna: Which is exactly why this strategy is gaining traction. Marketers are tired of building rented land. Lucas: Speaking of which — and I realize this ties in — if these marketing conversations have sparked something you've actually used in your own work or side project, and you want to help keep this show going without ads, we do have a listener support page. It's buy me a coffee dot com slash fexingo. Totally optional, but it helps us stay independent and focus on strategies like this that actually work. Luna: Yeah, and it's a small way to say 'this content is valuable to me.' We appreciate it, but no pressure at all. Lucas: Okay, back to the tactics. Another interesting case is a fitness brand called Peloton — they use Facebook Groups to funnel people into their weekly newsletter. They have a group called 'Peloton Pregame' with about fifty thousand members. Every Sunday they post a thread asking for workout goals for the week, and then they link to a newsletter signup that delivers a weekly training plan. Luna: So the group provides community and accountability, and the newsletter delivers structured content. The social platform becomes the relationship builder; the email becomes the delivery mechanism. Lucas: Exactly. And Peloton reported that the conversion rate from group member to newsletter subscriber was over twenty percent, which is extremely high. Because the group already filters for engaged fans. Luna: That's a smart use of the community as a top of funnel asset. Which leads to a broader point: the most effective social to newsletter strategies tend to start with an engaged micro-community, not a broad broadcast. Lucas: Absolutely. A hundred engaged fans in a Facebook group will convert better than a hundred thousand random followers on TikTok. Because the intent is already there. Luna: So the playbook for 2026 seems to be: pick one or two social platforms where your target audience hangs out, create content that demonstrates the value of your newsletter, offer a frictionless signup path, and use a lead magnet that's genuinely useful. Lucas: And measure the right metrics. Not just signups, but engagement rates from the newsletter — open rates, click-through rates, and eventually conversion to whatever your goal is, whether that's a sale, a download, or a repeat visit. Luna: Because a list of ten thousand subscribers who never open is just a vanity metric in a different form. Lucas: Right. So the benchmark I've heard from multiple marketers is: aim for an open rate above thirty percent within the first thirty days. If you're below that, your lead magnet might be attracting the wrong people, or your social content is setting the wrong expectation. Luna: That's a good rule of thumb. And if you're above fifty percent, you've probably nailed the alignment between your social sampling and your newsletter content. Lucas: Let's wrap with a forward look. As AI tools make content creation cheaper, we might see an explosion of newsletters — which means standing out will get harder. The brands that succeed will be the ones that use social media not just to broadcast, but to build genuine anticipation for what lands in the inbox. Luna: I think that's right. The social to newsletter funnel is only going to become more competitive. But for now, the brands that do it well have a real edge. Lucas: And the ones that ignore it are leaving money on the table. Alright, that's our episode. Luna, any final thought? Luna: Just that if you're a brand marketer, try this: pick one platform, create one content sample, and test one lead magnet this week. You might be surprised how fast a list can grow.