If you think that having more web pages will lead to better search rankings or a higher PageRank, then you are mistaken. That doesn’t mean, however, that there is no benefit to having more web pages on your website.
There are plenty of small websites that rank well. I’ve seen one page websites rank well, five page websites that rank well, and websites with hundreds of pages that rank well. So what determines how well a web page ranks in the search engines?
Nothing but the content.
The only way to ensure that your web pages rank highly in the search engines is to follow SEO best practices. If you do that, there’s no guarantee that you’ll take over the No. 1 position for every keyword that you are tracking, but your chances are higher if you follow the best practices recommended by the top SEO experts.
Also, if you have more pages on your website, then that simply means you have more opportunities to rank well – but only if you follow those SEO best practices.
In short, you have to follow the best practices for quality SEO on every web page on your website, whether you have one web page or 1,000. It’s those best practices that determine how well you do, weighed against how other web pages also employ those best practices. Focus on good SEO techniques, not on building more web pages.