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Social media isn’t just where people share cat videos or catch up with old friends—it’s where opinions are formed, shifted, and amplified. And if you’re running an eCommerce business, this matters a lot more than you might think.

The way people talk about your products, interact with your brand, and share experiences online directly influences how others perceive you—and whether they decide to buy.

In this post, we’ll break down how social media shapes public opinion, how that influences eCommerce sales, and what you can do to stay ahead of the conversation.

Why social media is the new public square

In the past, public opinion was shaped by a handful of institutions: newspapers, radio, TV. These days, it’s shaped by TikTok trends, Instagram stories, Reddit threads, and Twitter/X debates.

This matters for eCommerce because public perception of your brand—how trustworthy, cool, or reliable you seem—can change overnight based on what’s circulating online.

And the kicker? Most of it isn’t coming from you. It’s coming from your customers, influencers, and even strangers who’ve never bought from you but have something to say.

People trust people more than they trust brands.
According to Nielsen, 92% of consumers trust earned media—like word-of-mouth and user-generated content—over traditional advertising.

In other words, what people say about you online carries more weight than what you say about yourself.

How social media influences eCommerce buyer behavior

Think about the last time you bought something online. You probably did at least one of the following:

  • Checked the product on TikTok or YouTube for unboxing or review videos.
  • Read through Instagram comments or Reddit threads to see if the brand was legit.
  • Searched hashtags to get a feel for how the product looks in real life.

This is public opinion in action.

Buyers rely on signals from others to decide if something is worth their money. Social proof—likes, comments, reviews, influencer mentions—acts as a stand-in for trust.

A product with strong social proof feels safer to buy.
A product that’s getting dragged on Twitter? That’s a risk.

It’s not just about reputation, either. Social media also drives trends. Entire product categories—like skincare fridges, fidget toys, or heatless curlers—have exploded in popularity thanks to viral TikTok videos or influencer campaigns.

For eCommerce brands, the takeaway is simple: if you’re not actively managing your brand’s social presence, you’re leaving your reputation—and your revenue—in the hands of the internet.

The echo chamber effect (and how it works for or against you)

One reason social media is so influential is because of its echo chamber effect.

People tend to follow, engage with, and share content that matches their beliefs or preferences. Social algorithms pick up on this and serve them more of the same.

For example, if a user likes a few posts about clean skincare products, the algorithm will feed them more content—and ads—about clean skincare. If your brand is part of that conversation, you’re in. If not, you’re invisible.

This cuts both ways. A few negative tweets or critical videos can spiral into a narrative that follows your brand across platforms, even if it started small.

In short: the internet has a long memory, and social media turns whispers into megaphones.

What eCommerce brands can do about it

Now that we’ve covered how public opinion forms on social media and why it matters for eCommerce, let’s talk strategy. Here’s how to make social media work for you, not against you:

Be part of the conversation (before you’re the subject of it)

Don’t wait for customers to tag you. Actively monitor what people are saying about your products, niche, and competitors.

Tools like Brand24, Mention, or even a few smart Twitter/X searches can surface real conversations worth paying attention to.

Invest in user-generated content (UGC)

Encourage real customers to post about your products. This could be as simple as:

  • Running giveaways in exchange for reviews.
  • Reposting UGC with credit on your own socials.
  • Featuring customer stories on your website or product pages.

This builds trust and spreads social proof organically.

Work with micro-influencers, not just big names

Influencer marketing isn’t just for beauty brands and mega-campaigns. Micro-influencers (people with 1k–100k followers) often have higher engagement and more niche, loyal audiences.

For an eCommerce brand, this can translate into more authentic endorsements and better ROI.

Respond to feedback—fast

Social media is real-time. If there’s an issue with your product or shipping, customers will talk about it before they email support.

Acknowledging feedback publicly (and solving it fast) shows that you’re listening—and builds trust.

Shape the narrative with content

Don’t just react—create. Publish stories, behind-the-scenes videos, and transparent messaging that aligns with what your audience cares about.

If you’re a sustainable clothing brand, talk about your materials and process. If you’re selling supplements, walk through how they’re made and why they work.

Own your story, or someone else will.

TL;DR: Social media is where your brand reputation is made—or broken

For eCommerce businesses, social media isn’t optional—it’s foundational. It shapes how people think about your brand, how much they trust you, and whether they’re willing to buy.

The good news? You don’t need to go viral. You just need to be intentional, consistent, and human.

Have questions? Chat with an expert in real time—just pick a time that works for you!.

At Sambuno, we help eCommerce brands build trust and drive revenue through smart, strategic social media marketing. Because public opinion isn’t random—it’s shaped. Let’s shape it in your favor.

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