SEO Basics for Authors: Building Blog Topic Clusters (With a Few Ideas to Get You Started)

If there’s one mistake I’ve made along my way through the foggy swamp of blogging, it’s treating every post like it’s an island. One week it’s a writing update, then the following week a post on mental health, followed by a random article on the craft of writing.

And it’s not that the posts themselves are bad. (Although, maybe they are?) But together, they don’t curate an overarching idea. They just come off as random, one-time posts.

Introducing: topic clusters.

Topic clusters are one of the simplest long-term SEO strategies authors can use because they help your website build authority around the kinds of stories you write.

And the best part for you? You can adapt it to pretty much any topic or genre, so you can focus on the content you already enjoy blogging about.

So, what is a topic cluster?

A topic cluster is a group of related blog posts centered around one larger theme.

Think of it like this:

• One pillar topic acts as the main hub.
• Several smaller blog posts support that topic.
• All the posts link together naturally.

Instead of publishing disconnected content, you create a network of related ideas.

For example:

Pillar Topic:

A Guide to Psychological Thrillers

Supporting Posts:

• What Makes an Unreliable Narrator Work?
• Best Small-Town Thriller Tropes
• Books Like Pretty Girls
• Why Readers Love Morally Gray Characters

It’s like a building, if you will. Each post is another brick in the wall that reinforces previous posts under whatever pillar topic you choose. And over time, search engines like Google start to “understand” what your blog is about.

But how do topic clusters help me as an author?

Readers search in patterns.

They don’t just search:

• “buy books”

They search:

• “authors like Karin Slaughter”
• “fantasy romance with dragons”
• “cozy mysteries set in small towns”
• “books that will make me cry”

You get the picture.

Topic clusters help your website show up for those searches because they build upon specific themes, genres, and reader interests.

Some other important bonuses:

• Blogs improve internal link architecture.
• Related, interlinked posts keep readers on your site longer, which can lower bounce rates.
• Having topics to focus on makes blogging easier over time.
• Blogs help establish your niche as an author.

Instead of constantly asking, What should I blog about? you already have a structure to build from.

Not sure what pillar topics you should write about? Here are a few ideas based on a few popular genres.

The easiest way to build topic clusters is to think about what makes your genre unique. For me, I write about an amateur female sleuth meets the gritty crime scene of New York.

Here are a few ideas to help you build your topic cluster for your genre.

Fantasy & Romantasy Clusters

Pillar Topic: A Beginner’s Guide to Fantasy Romance/Romantasy

Supporting Posts:

• The Romantasy Tropes You’ll Find in My Books
• When Is Slow Burn Too Slow Burn?
• Books with Dragons and Political Intrigue
• Enemies-to-Lovers Fantasy Books
• How Worldbuilding Shapes Romantasy Stories

Thriller & Mystery Cluster

Pillar Topic: What Makes a Great Psychological Thriller

Supporting Posts:

• Unreliable Narrators Explained
• Why Small-Town Thrillers Work So Well
• Books Like Sharp Objects
• The Appeal of Morally Gray Detectives
• Slow-Burn Suspense vs Fast-Paced Thrillers

Romance Clusters

Pillar Topic: Romance Tropes Readers Never Get Tired Of

Supporting Posts:

• Enemies to Lovers vs. Rivals to Lovers
• The Fake Dating Trope: My Top 5 Picks
• Why I Write Second-Chance Romance
• My Top Friends-to-Lovers Reads
• Slow Burn vs Insta-Lust and Insta-Love

Horror Clusters

Pillar Topic: Why Psychological Horror Stays With Readers

Supporting Posts:

• Gothic Horror Elements Readers Love
• Isolation in Horror Fiction
• Why Slow-Burn Horror Works
• Monsters as Metaphors
• Folk Horror vs Supernatural Horror

Literary Fiction Clusters

Pillar Topic: Why Character-Driven Stories Resonate

Supporting Posts:

• Themes of Grief in Literary Fiction
• Quiet Tension in Literary Novels
• Family Dynamics in Contemporary Fiction
• What Makes Literary Fiction Emotional

Sci-Fi Clusters

Pillar Topic: Accessible Science Fiction for New Readers

Supporting Posts:

• Thoughts on Character-Driven Stories in Science Fiction
• What Defines a Dystopian Setting?
• Why Readers Love Space Operas
• A Favorite Found Family Stories in Science Fiction
• Building Realistic Technology in Modern Sci-Fi

So, you want to build your own topic clusters?

The nice thing about topic clusters is that you don’t necessarily have to have every post planned before you start blogging.

Here’s a simple process to get you started:

1. Pick a broad topic that will allow for an umbrella over more niche topics.
2. Find keywords that fall into your chosen topic, and use those keywords to draft post ideas.
3. Pick a broader but short-tail keyword to start. This will define your topic cluster. (You can search “free keyword planner” to get started finding keywords.)
4. Build semantic keywords based on that “main” keyword to center your first few blog posts.
5. Brainstorm reader questions you can answer based on those longer semantic keywords.
6. Start creating supporting posts by researching more niche keywords to target in these supporting posts.
7. Build your site’s link architecture by linking these related posts to one another. This helps engines crawl your site and understand its structure.

A couple tips:

• Start smaller than you think. You don’t need to plan 50 blogs or publish daily. (Unless you want to, of course.) Additionally, you don’t need an advanced SEO strategy to start blogging. Just start with one pillar topic and build upon that base.
• Try not to stray. Unless you’re writing a bakery romance, you don’t need to blog about your favorite cupcake recipes. Keep the focus on your genre and niche — basically, think about how you want readers to think about your books, because that’s the product you’re trying to sell.

Yes, there are long-term benefits to building your blog with topic clusters.

Topic clusters compound over time, and blogging is a great way to start building your SEO strategy if you’re not sure where to start. (I have a 90-day Optimization Plan for author websites if you’re looking to get started with your own strategy!)

Each new post:

• strengthens your niche
• supports older content
• creates more internal links
• gives readers more paths through your website

Instead of isolated posts that seem random, your blog breeds coherency and strategy.

Which, of course, is a lot more sustainable in the long term!

Photo by Christin Hume on Unsplash