Or, to put it another way:
Got it? Good.
I’m sorry to suddenly become the nomenclature-nazi, but when people interchange words like those above it just gets confusing. Saying “I’ve just finished a giant blog” or “I’m writing a blog about cheese” confuses the container object for the constituent part.
A blog carries with it expectations or overtones of archive, pace, time, multiple postings. Blogs don’t finish. If you’re writing a blog about cheese then I expect to see lots of posts about cheese, exploring dairy products from all angles, not one entry, about Edam.
Likewise, people occasionally say “there are a lot of nice bloggers on my blog” which is nice and everything, but they have a different relationship than you to the content. You wrote it; they responded to what you wrote. You are the blogger; they are the commenter.
It’s a small distinction, but it’s important.
That is all.
PS Some have asked with what authority I make this bold linguistic claim. The answer is: I’ve been blogging for eleven years, since it began with a W.