Achieving higher PR with social bookmarking
Millions of dollars is spent on SEO operation to get the higher PR. Conventionally people use to post articles, blogs and use pings to get higher PR. These are risky as search engine changes their algorithm very often. So it is better to post links in well known social bookmarking sites. Generally social bookmarking sites will have higher PR. Having associated with these higher PR, social bookmarking sites will improve your site’s PR. Having done this, you can even link your new or other less PR sites to improve their ranking. Once you have higher PR you can demand more price for your advertisement panels.