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Marketing 101

Social Media Marketing 101: What Actually Works

A founder-friendly primer on social media marketing — which platforms to focus on, what to post, and how to stop wasting hours guessing what works.

4 min read·Updated May 13, 2026

What is social media marketing?

Social media marketing is using public-facing platforms — X, LinkedIn, Reddit, Instagram, TikTok, Threads — to build awareness, trust, and inbound interest in what you're building. Not selling. Showing up consistently with useful, interesting, or honest things to say.

The trap most founders fall into: they think social media is about getting "followers." It's not. It's about getting the right 100 people to know who you are. A LinkedIn post that lands in front of three potential customers is more valuable than a tweet that gets a thousand likes from people who'll never buy.

Each platform has its own voice, length expectations, and norms. A post that works on LinkedIn would be cringe on X. A thread that performs on X would be ignored on Reddit. This is why posting the same thing everywhere doesn't work.

What VibeFlow's Social agent gives you

Platform-specific posts, ready to publish:

  • X (Twitter) — single tweets, multi-tweet threads, day-of-launch threads with 15 tweets and a timing plan.
  • LinkedIn — personal posts (first-person voice, story-driven) and Company Page posts (more polished, third-person).
  • Instagram — captions sized for in-feed posts, plus multi-slide carousel scripts.
  • TikTok — short-form video scripts with hooks, beats, and CTAs.
  • Reddit — community-aware drafts that fit each subreddit's tone. r/SideProject reads differently from r/Entrepreneur.
  • Threads — Meta's text-first platform, similar tone to X but lower stakes.

Every post applies your Brand Kit and pulls voice from your Voice Library, so your X voice and your LinkedIn voice stay consistent with everything else you publish.

Where this content goes

You publish directly into each platform's native composer:

  • X — paste tweets / threads into the composer. Threads can be posted one tweet at a time, or scheduled via Buffer or Hypefury.
  • LinkedIn — paste into a new post. For Company Page posts, switch identity in the "Post as" dropdown.
  • Instagram — captions go in the Instagram app or Meta Business Suite. Carousels are uploaded as multiple images with captions per slide.
  • Reddit — paste into the subreddit's "Create Post" flow. Pay attention to community rules; some subreddits ban self-promotion.
  • TikTok — record the video using the script, then upload.

Getting started: your first three posts

If you're new to building in public, here's the minimum-viable rhythm:

  1. One "I'm building X" post on the platform you use most. LinkedIn if you're B2B, X if you're indie hacker / dev, Reddit if your audience hangs out in a specific subreddit. Don't try all three. Pick one.
  2. One reply per day to someone else's post in your space. Useful, specific replies — not "great post 👏." This builds reputation faster than your own posts will at first.
  3. One follow-up post per week with what you've shipped or learned. Build the cadence first, optimize for performance later.

Common mistakes to avoid

  • Posting the same thing on every platform. It doesn't work. A 280-char X post can't carry a 400-word LinkedIn story. The Social agent generates platform-specific versions for exactly this reason.
  • Optimizing for likes. Likes are a vanity metric. Inbound DMs, profile visits, and replies from people in your target audience are the signals that matter.
  • Going dark for weeks then posting a big launch. Algorithms reward consistency. Three weeks of silence followed by a "launching today!" post will get zero reach.
  • Ignoring engagement. If someone replies to your post, reply back. Same day. This is how you turn social into a network.
  • Trying to be witty when your voice isn't witty. If you're earnest in person, be earnest online. Trying to match an internet voice that isn't yours is the fastest way to sound off.

Glossary

  • Impressions — how many times your post was shown. Cheap; doesn't mean someone read it.
  • Engagement rate — likes + comments + shares ÷ impressions. A useful sanity check.
  • Reach — how many unique people saw the post (vs. impressions, which counts repeat views).
  • Organic — unpaid distribution from the platform's algorithm.
  • Paid social — boosted posts or ads. Covered by the Paid Ads agent, not this one.

FAQ

How many platforms should I focus on? Start with one. Add a second once you've got rhythm. Three is the practical maximum for solo founders.

Should I post in the morning, afternoon, or evening? Different per platform and audience. The Social agent's Calendar integration suggests times based on your audience patterns. Tuesday–Thursday mornings (your audience's timezone) is a safe default.

Should I use hashtags? On LinkedIn and Instagram: yes, 3–5 relevant ones. On X: usually no — they look spammy unless you're tagging an event. On Reddit: never, the platform doesn't use them.

What to do next

Open the Social agent in your dashboard and generate a post for the platform you use most. If you're not sure which platform fits your business, run a full Launchpad campaign and we'll generate posts across every platform so you can see which voice lands.

Ready to apply this?

VibeFlow's Social Media Marketing 101 agent generates everything in this guide for your business — in your voice, ready to publish.

Start free — generate your first one