A blog is a website, or a section of a website, where new articles called posts are published regularly and usually shown with the newest first. That’s the short answer. The longer answer is more interesting, because blogs have changed a lot since the early 2000s and they’re used for very different purposes today.
Where the word “blog” comes from
“Blog” is short for weblog, a term from the late 1990s for an online log of entries. Early blogs were personal diaries and lists of interesting links. Someone later joked that “weblog” could be read as “we blog”, and the shorter word stuck. Today, “blog” is both a noun (a blog) and a verb (to blog), and a person who writes one is a blogger.
The key features of a blog
- Posts: individual articles, each with its own title, date and URL.
- Reverse chronological order: the newest posts usually appear first on the blog page.
- Categories and tags: ways of grouping posts by topic so readers can find related content.
- An author voice: blogs tend to be more personal and conversational than traditional websites.
- Regular updates: a blog is alive. New content is added weekly or monthly, not once.
- Interaction: many blogs allow comments, and most encourage sharing.
Blog vs website: what’s the difference?
Every blog is a website, but not every website is a blog. The difference is mostly about how content is published and updated.
| Typical website | Blog | |
|---|---|---|
| Content | Fixed pages (Home, Services, About) | A stream of new posts |
| Updates | Occasionally | Regularly |
| Tone | Formal, promotional | Conversational, helpful |
| Goal | Present a business or product | Inform, teach, entertain or build an audience |
Many businesses combine both: a classic website with a blog section where they publish helpful articles.
The main types of blogs
Personal blogs
Diaries, life updates and reflections. Their value is the person behind them. Read more in our guide to personal blogging.
Niche blogs
Focused on one topic, such as vegan recipes, budget travel or woodworking. These are the most common type of blog people start today, because a clear topic makes it easier to attract readers. Not sure what yours would be? See how to choose a blog niche.
Business blogs
Run by companies to answer customer questions, share expertise and attract visitors from search engines.
Professional or portfolio blogs
Used by freelancers, designers, writers and consultants to show their work and thinking.
Multi-author and media blogs
Larger sites with several writers that publish frequently, sometimes many times a day.
Lifestyle, food and family blogs
Popular categories with huge audiences. We cover them in lifestyle blogging, food blogging and mom blogging.
Examples of what blog posts look like
Blog posts come in many formats. Some of the most common are:
- How-to guides: “How to Start a Vegetable Garden on a Balcony”
- List posts: “12 Cheap Weekend Trips from Chicago”
- Reviews: “I Used This Budget App for 6 Months: Here’s What I Learned”
- Personal stories: “What Moving Abroad Taught Me About Money”
- Comparisons: “Notion vs Trello for Planning Content”
For more inspiration, browse our collection of blog post examples that actually work.
Why people still blog
With video and social media everywhere, it’s fair to ask whether blogs still matter. They do, for a few reasons:
- Search: people still type questions into Google, and well-written articles are often the best answer.
- Ownership: your blog is yours. Social media accounts can be suspended or lose reach overnight.
- Depth: a blog post can explain something properly, in a way a 30-second video can’t.
- Longevity: a good post can bring visitors for years.
- Income: blogs can earn through ads, affiliate links, products and services. Here’s a realistic look at how blogs make money.
What you need to start a blog
Surprisingly little: a topic, a name, a blogging platform and the willingness to publish consistently. The technical part takes an afternoon. The real work is writing helpful posts over time. When you’re ready, follow our step-by-step guide to starting a blog.
FAQs
What is the purpose of a blog?
It depends on the blogger. Common purposes include sharing knowledge, documenting experiences, building a personal brand, attracting customers to a business and earning income through advertising or affiliate links.
Is a blog free?
You can start a blog for free on platforms like Blogger or WordPress.com’s free plan. A self-hosted blog with your own domain usually costs a small yearly amount for the domain and monthly hosting. See our comparison of free blogging sites.
What’s the difference between a blog and a vlog?
A blog is mainly written; a vlog (video blog) is mainly video. Many creators do both. Our guide to blogging vs vlogging explains the pros and cons.
How often do bloggers post?
Anywhere from several times a day to once a month. For most individual bloggers, once or twice a week is a sustainable pace. Read how often you should post on your blog.