Holding page rank and visibility on the search engines is quite difficult to achieve, and you pay be interested in a pay per click campaign. Google and other search engines use different methods of measuring the significance of your website in relation to keywords.
You must learn to optimise as much of your website as you can so that you can as many readers as possible. The more readers you have, the greater the responsibilities and functions of your PR becomes.
The more successful your SEO is, the more effective your PR can also be. SEO opens opportunities for PR that companies must then take advantage of. You can also measure the success of SEO and PR work with the opportunities that both open up for your business.
PR and SEO work together and bring you better exposure, which leads to better sales. Or if your focus is just to raise the profile of your business online then good SEO and PR can help you achieve this. You can build a good reputation for your business which in the long run will really help you build your success.