Post Length – How Long Should a Blog Post Be?

We might as well continue exploring the topic of writing good content with a topic that has been debated by bloggers rather hotly over the years, the length of the optimum post. There are a number of ways of looking at it:

Reader Attention Span – It is pretty well documented that the typical web reader has a short attention span when it comes to reading content online. My own little investigation into length of stay on blogs found that average blog readers stay 96 seconds per blog (I’ve seen other more scientific tests that show similar results). What ever the number – it’s generally not long. As a result many web-masters purposely keep their content length down to a level that is readable in short grabs.
SEO – There is a fairly strong opinion among those considered experts in Search Engine Optimization that both extremely short and extremely long web pages are not ranked as highly as pages that are of a reasonable length. Of course no one really knows how many words are ideal – but the general opinion seems to be that a page of at least 250 words are probably a reasonable length. Similarly, many advise keeping pages under 1000 words.
Quantity of Posts – One theory that goes around is that shorter posts allow you to write more posts and that more posts are better for generating readership with RSS and in Search Engines. While I don’t know their strategy personally, some believe this is what sites like Engadget and Gizmodo do with their high number of short posts which make up the majority of their content.
Topic/Genre - The type of post that you’re writing will often determine it’s length. For example when writing a review of a product you’ll generally write a longer post than when you write a news related post where you link to something someone else has written.
Comprehensive Coverage of the Topic - Ultimately this has to be the main criteria that bloggers go with. I can’t remember who advised this but at some point in the last year I read someone saying that you should write enough to comprehensively cover your topic and then stop. Long posts for the sake of them are not a wise move – but so are short ones that don’t cover the topic well.
In the end you need to find your own way on this. Here at ProBlogger I tend to mix it up a fair bit. I try to write at least one longer post per day that gives readers a bit of meat to chew on (whether it be a tips post, a review post, a rant etc) but I also throw in ‘newsy’ posts throughout the day.
Source : problogger.net