This plugin sounds a little insignificant but its far from it. If you set up your blog with, for example a free theme, its quite typical to have the pages on your blog use a “next post” or “previous post”.
This isn’t good for two reasons.
Firstly, it won’t help search engines find the pages on your site because they are set in series by this method, therefore to get to the earliest posts the search engine spiders will have to follow and scan, follow and scan follow and scan in this method. Cumbersome and not very friendly. Secondly, visitors will work in the same way. They have no desire o cycle though 12 pages one at a time to reach a desired post.
What WP Page Numbers does is add a line of numbers (surprise surprise!) in one of 5 styles you can choose from, to the bottom of the page allowing spiders to reach all the following pages from one place, effectively opening up the site in a friendly manner and allowing them to search and scan in parallel rather than in series.
This is the same for visitors.
They can simply click the page numbers and skip to that page immediately rather than being forced to cycle through all the irrelevant content they have no interest in.
Not all themes will need this plugin, but if you realise that you do, it will require a little editing in the theme code in order to work so you may need som help to sort this out. Definately worht it on a search engine level and a usability level.
Author: Jens Törnell
Download the WordPress Page Numbers Plugin.