Social media marketing is important because your customers are there. It lets you reach them at low cost, build trust before they ever talk to sales, learn what customers and competitors say, and turn attention into leads and sales.
The scale is hard to ignore. DataReportal's Digital 2026 report counted 5.66 billion social media user identities in October 2025, equal to 68.7% of the world's population. It notes that identities are not the same as unique people, since some people have several accounts. In the US, Pew Research Center finds that YouTube and Facebook are the most widely used platforms and that about half of adults use Instagram.
Here are seven reasons social media deserves a place in your marketing plan.
1. It is cost-effective
Creating business accounts on the main social networks is free. A Google Business Profile, which puts your business on Google Search and Maps, is also free to create, although it is a listing rather than a social network.
The real cost is time: planning, creating and engaging. For a small business that runs social media in house, that can still be one of the cheapest ways to stay visible. Paid social then lets you reach new, targeted audiences with budgets you control by the day. See our social media tools to save time on scheduling and reporting.
2. It builds brand awareness and authority
People buy from brands they recognise and trust. Regular, useful posts keep your name in front of buyers long before they are ready to purchase.
What works:
- Educational content that answers your buyers' questions.
- Visual content such as charts, short videos and infographics that explain an idea quickly.
- A consistent look and voice so people recognise your posts in a busy feed.
- Proof such as customer stories and results, shared with permission.
3. It lets people, not just logos, build trust
For B2B, posts from founders, experts and sales reps give your company a human face that a company page cannot. A sales rep who shares useful insights on LinkedIn arrives at the first call as a known name, not a stranger.
Encourage your team to post about what they know, and give them simple guidelines rather than scripts. Read how to use LinkedIn as a salesperson and how to grow a LinkedIn company page.
4. It shows you what customers really think
Social media is a large, public focus group. Comments, replies and mentions show what customers like, what frustrates them and the words they use to describe their problems.
Use it to:
- Find content ideas from common questions.
- Improve your product and messaging based on recurring complaints.
- Pick up the language your buyers use, and reuse it in ads, emails and landing pages.
Social listening tools can track mentions of your brand, competitors and keywords across networks.
5. It helps you learn from competitors
Competitors' profiles are public. Review which posts get the most engagement, what questions their customers ask and what complaints go unanswered. Those gaps are your opportunity: content they do not cover, service problems you can solve, or audiences they ignore. See how to spy on your competitors' marketing.
6. It builds relationships with customers
Social media is two-way. Replying to comments and messages, thanking customers and handling complaints in public shows that you listen. That goodwill makes customers easier to keep and more willing to recommend you.
Set clear response times and decide who handles which kinds of messages. Move complex issues to private messages or support. For other channels that build loyalty, read emails that build relationships with customers.
7. It drives leads and sales
Social media is not only for awareness. It can feed your pipeline directly:
- Paid social targets by interests, location and, on LinkedIn, by job title and company.
- Native lead forms on LinkedIn and Meta let people request information without leaving the app.
- Messaging turns interest into conversations. See how to get more leads with Messenger bots.
- Communities and groups let you help people in public, which brings inbound interest when done without spamming.
For more tactics, see our ways to generate leads.
How do you measure social media marketing?
Measure what connects to business goals, not just likes:
- Reach and follower growth among your target audience.
- Engagement rate on posts.
- Clicks to your website and conversions from social traffic.
- Leads, pipeline and revenue influenced by social.
Our guide on how to measure social media marketing success covers the metrics in detail.
How to get started with social media marketing
- Pick one or two platforms where your buyers are active. For B2B, that usually includes LinkedIn.
- Define your goal for each: awareness, leads, support or hiring.
- Plan a simple content mix: education, proof, behind the scenes and offers.
- Post consistently and reply to comments and messages quickly.
- Review monthly, keep what works and drop what does not.
For more ideas, read our social media marketing trends and LinkedIn marketing strategies.
Frequently asked questions
Why is social media marketing important for small businesses?
It lets small businesses reach and talk to customers without a large budget. Business accounts on the main networks are free to set up, and consistent, useful posts build awareness and trust over time. Paid ads can then target specific audiences with small budgets.
Is social media marketing important for B2B companies?
Yes. Many B2B buyers use networks such as LinkedIn and YouTube to learn about their field and the vendors in it. Posts from founders, experts and sales reps build credibility before the first sales conversation, and paid social can target by job title and company.
How many people use social media?
DataReportal's Digital 2026 report counted 5.66 billion social media user identities in October 2025, equal to 68.7% of the world's population. It notes that identities may not equal unique people, because of duplicate and business accounts.
Which social media platform is best for business?
The one your buyers use. In the US, Pew Research Center finds YouTube and Facebook are the most widely used platforms. For B2B, LinkedIn is the main professional network. Start with one or two platforms and do them well.