I hear about several techniques to popularize a website on the internet, but what is the difference between page rank and link popularity?
PageRank and Link Popularity are two different concepts which are often mistaken. While PageRank is an outcome of the volume of links to a webapage, link popularity is the result of quality of links from the theme related sites, and is fundamentally linked to search engine optimization. Typically, the concept of PageRank toolbar belongs to Google search engine. Google considers the number of inbound links to a webpage before assigning a specific PageRank to a webpage. However, the quality of inbound links plays a vital role in deciding the search engine ranking of a webpage among all other factors. It should be remembered that link popularity has much more importance as this is the single most factor that is responsible for increasing the search engine visibility of your webpage which, in turn, drives traffic to your websites, leading to increase in sales.
Page rank is the authority of you age. This is gained by having lots of backlinks and also the age of your site. Link popularity is what will rank you high in the search engines and give you a higher page rank.