Everyone knows the importance of creating a website that is SEO-friendly. I was planning to develop an SEO-friendly site. But, my friend told me that I should also consider PageRank as an important factor while setting up a site. He also told me that it is very easy to come up with a site up to PR5 or PR6. But, I did not understand how to push PR. My site will be an informational resource. There are no links going outside the site till now. How do I go about it? Should I link the site to other website to get high PR?