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There is no shortage of advice about what to post on social media. Every marketer seems to have a favourite framework, a golden ratio, a rule that “changed everything” for their engagement. The result is a lot of conflicting guidance and a lot of confused business owners wondering which one to actually follow.

This guide cuts through that. It explains every major social media content rule, what each one is actually designed to do, and which situation each one suits best. By the end, you will have a clear picture of which framework fits your business and what a practical posting plan based on it looks like.

Why Content Frameworks Exist

Before diving into the frameworks themselves, it is worth understanding what problem they are solving.

Most businesses that struggle with social media do not struggle because they lack ideas. They struggle because they do not have a principle for deciding what to post. Without one, the content default is to post whatever is available: a product photo, a company update, a promotional offer. The feed becomes a noticeboard, engagement drops, and the conclusion is that “social media does not work for us.”

Content frameworks solve that problem. They give you a ratio or a rule that tells you what proportion of your content should educate, what proportion should promote, and what proportion should do something else entirely. They do not tell you what your content should say, but they do tell you what job it should do.

Used well, a framework makes your content calendar easier to plan, your feed more balanced, and your audience more likely to keep following you.

The 5-3-2 Rule

The 5-3-2 rule divides every ten pieces of content into three buckets:

• 5 posts are curated content from other sources relevant to your audience
• 3 posts are your own original content, whether articles, videos, tips or insights
• 2 posts are personal or humanising content that shows the people behind the brand

The logic behind the rule is that audiences disengage when a brand’s feed is entirely self-focused. By leading with curated content from others, you position yourself as a useful resource rather than a broadcaster. The original content shows your expertise. The personal content builds trust.

The 5-3-2 rule works particularly well on LinkedIn and Facebook, where audiences expect a mix of professional insight and human presence. It is less instinctive on visual-first platforms like Instagram or TikTok, where original creative content tends to dominate.

One important note: the 5-3-2 rule does not explicitly include a promotional slot. If you need to post directly about your products or services, most practitioners treat the personal content bucket as the flexible one, occasionally swapping a personal post for a promotional one.

For a deeper breakdown of the 5-3-2 rule and how to apply it platform by platform, read our full guide to the 5-3-2 rule for social media.

Best fit: LinkedIn, Facebook, B2B brands, professional services, businesses building thought leadership.

The 80/20 Rule

The 80/20 rule is the simplest of all the content frameworks. It says: 80% of your content should provide value to your audience, and 20% can be direct promotion of your products or services.

What counts as “value” is deliberately left open. It might be educational content, entertainment, behind-the-scenes footage, industry news, or anything else your audience finds useful or interesting. The rule does not specify, which gives it flexibility across platforms and business types but also means it requires more creative judgement to apply well.

The 80/20 split is derived from the Pareto Principle, the observation that roughly 80% of outcomes in many systems come from 20% of inputs. Applied to social media, the underlying idea is that the content you give freely is what earns you the right to sell.

Where the 80/20 rule differs most from frameworks like 5-3-2 is in its simplicity. It is easy to explain to a team, easy to apply across multiple platforms, and easy to audit: if more than one in five of your recent posts is promotional, you are out of balance.

The weakness is that it does not tell you what to do with the 80%. A business that fills that space with generic motivational quotes is technically following the rule but missing the point entirely.

Best fit: Businesses managing social media across a team, brands active on multiple platforms, anyone who needs a rule simple enough to be applied consistently at scale.

The Rule of Thirds

The Rule of Thirds divides your content into three equal parts:

• One third is your own content, whether original articles, videos, product content or brand stories
• One third is curated content from others, industry news, useful links, content from accounts you respect
• One third is personal or conversational content, replies, questions, opinions, behind-the-scenes moments

At first glance this looks similar to the 5-3-2 rule, and the underlying philosophy is the same: a healthy social media presence is not all about you. The key difference is emphasis. The Rule of Thirds gives equal weight to all three buckets, whereas the 5-3-2 rule leans more heavily into curated content.

The Rule of Thirds tends to suit personal brands and individual creators well, because the conversational third gives explicit permission to post opinions, start discussions, and respond publicly to what others are saying. For businesses with a more formal brand voice, the 5-3-2 rule often feels like a more comfortable fit.

Best fit: Personal brands, founders with a public profile, solopreneurs, creators who want to build community as much as audience.

The 5-5-5 Rule

The 5-5-5 rule is different in nature from everything else on this list. It is not a content ratio. It is a daily activity habit, and it was designed specifically for LinkedIn.

The rule says: each day, publish 5 pieces of content, leave 5 meaningful comments on other people’s posts, and send 5 new connection requests.

The thinking behind it is that growth on LinkedIn is driven not just by what you post but by how actively you participate in the community. Commenting thoughtfully on other people’s content increases your visibility with their audience. Sending consistent connection requests grows your network deliberately rather than passively.

In practice, publishing 5 pieces of content per day is aggressive and not realistic for most businesses. Many practitioners adapt the rule: 1 post per day, 5 comments per day, 5 connection requests per day. That version is sustainable and still captures the core idea.

The 5-5-5 rule is best used alongside a content framework, not instead of one. Use the 5-3-2 rule or 80/20 rule to plan what you post, and use the 5-5-5 rule to remind yourself that posting alone is not enough.

Best fit: LinkedIn users building a personal brand or professional network, B2B businesses using LinkedIn as a primary lead generation channel.

The 90-9-1 Rule

The 90-9-1 rule describes how online communities naturally behave rather than prescribing how you should post. It observes that in most online communities:

• 90% of members are passive lurkers who consume content but never contribute
• 9% occasionally participate, liking, sharing, or commenting sporadically
• 1% create the vast majority of content and drive most of the community’s activity

This rule matters for social media because it recalibrates expectations. If you post something genuinely good and it gets 400 impressions with 4 comments, that is entirely normal, not a failure. It means your content reached 400 people, 360 of whom read it without engaging, 36 of whom probably liked it internally without pressing the button, and 4 of whom felt moved to respond.

The 90-9-1 rule does not tell you what to post. It tells you why most of your reach is invisible and why you should not measure the success of a post purely by the comments it receives.

Best fit: Anyone who has been discouraged by low engagement and is tempted to give up on social media before they have built enough of an audience to see results.

The 50-30-20 Rule

Less widely discussed but worth knowing, the 50-30-20 rule divides content as follows:

• 50% is entertaining or inspiring content designed to build brand affinity
• 30% is informative or educational content that positions you as a useful resource
• 20% is promotional content directly related to your products or services

The 50-30-20 rule is particularly popular with ecommerce and consumer brands on Instagram and TikTok, where entertainment-led content tends to perform better than information-led content. If you are selling physical products or lifestyle-adjacent services, this framework gives your feed more creative and visual energy than the more information-heavy 5-3-2 or 80/20 ratios.

Best fit: Ecommerce brands, consumer products, lifestyle businesses, brands on Instagram and TikTok.

Comparing All the Frameworks

Which Rule Should You Follow?

There is no universally correct answer, but there are some useful starting points.

If you are just getting started and need a framework that tells you not just how much to promote but what else to post, the 5-3-2 rule is the best entry point. It is specific enough to be actionable and the curated content bucket removes a lot of the pressure to generate original ideas every day.

If you are managing social media across a team or multiple platforms and need something everyone can apply consistently, the 80/20 rule is easier to communicate and harder to misinterpret.

If LinkedIn is your primary channel and you are trying to grow your personal network alongside your content presence, layer the 5-5-5 daily habits on top of whichever content framework you choose.

If you are running a consumer brand on Instagram or TikTok, the 50-30-20 rule gives your feed more permission to be entertaining and less obligation to be educational.

The one thing all of these frameworks have in common is that they only work if you apply them consistently. Picking the right ratio and posting irregularly will not move the needle. Picking a reasonable ratio and showing up consistently for six months will.

Putting It Into Practice

Whatever framework you choose, the process for implementing it is roughly the same.

Start by auditing your last 20 posts and categorising them according to your chosen framework. Most businesses discover they have been posting far more promotional content than they realised, often 50% or more. That audit alone is usually enough to shift how you think about your content calendar.

Then plan your next month of content in advance, using your chosen ratio as the guide. For each piece of content, ask: what job is this post doing? Is it building trust, sharing expertise, promoting something, or starting a conversation? If you cannot answer that question, the post probably does not belong in your calendar.

Review the results after 60 to 90 days. Look at which content type gets the most engagement, which posts drive traffic to your website, and whether your follower count and enquiry rate are trending upward. Then adjust.

Social media content rules are not magic formulas. They are a starting point for thinking more deliberately about what you post and why. The businesses that get results are not the ones that found the perfect framework. They are the ones that picked a reasonable one and applied it consistently enough to learn from it.

If you want help building and managing a social media strategy for your business, Digital Nest works with brands across London and the UK to plan, create and publish content that actually drives results. Get in touch to find out what that looks like in practice.

Digital Nest Development & Marketing is a social media marketing agency in London specialising in organic social strategy, content creation and paid social advertising for growing businesses.