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Prepositions before nouns

'Of blog' vs. 'on blog'

On a blog is the natural expression for content published there. Of blog is generally not idiomatic alone.

Quick answer

Standard usage

Use on a blog for location or publication. Of blog is uncommon except inside longer phrases such as the name of the blog.

I read it on a blog yesterday.
She wrote on her blog every week.
The title of the blog changed.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
on a blog

Showing where content appears

Use on for online platforms and pages.

The article appeared on the blog.
2
blog about + topic

Naming the subject of a blog

About introduces the topic.

He runs a blog about travel.
3
of the blog

Showing possession or relation

Of can connect another noun to blog.

The design of the blog is simple.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
on blog
I saw the recipe on a blog.
published or appearing there
of blog
the owner of the blog
part of a larger possessive phrase
blog about
a blog about science
topic of the blog
blog on
a blog on marketing
formal alternative to 'about'

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Leaving out the article after on

Blog is usually countable.

✕ I found it on blog. ✓ I found it on a blog.

Using of blog alone

Of blog normally needs another noun before it.

✕ She posted it of blog. ✓ She posted it on her blog.

Quick practice

Choose the expression that matches the intended meaning.

1. I read the story ___ a blog.
2. Choose the natural phrase.
3. Which phrase is possessive?

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Frequently asked questions

Should I say 'on the blog' or 'in the blog'?

On the blog is standard for online content.

Can I say 'blog on politics'?

Yes. It is a formal alternative to 'blog about politics'.

Is 'of blog' correct?

Only inside a larger phrase such as 'title of the blog'.

of, about, against, to or for racism? of, about, for, in or on friendship? of, about, for, on or to thing? of, about, for, to or with sex? of, about, on, to or for moon? "of access" or "with access"? "of accommodation" or "for accommodation"? "of accuracy" or "for accuracy"? "of action" or "in action"? "of actor", "with actor" or "by actor"? "of address" or "to address"? "of administration" or "in administration"?

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