PageRank is something which the search engine Google has made very popular. It is a number score that Google gives to each web site on the internet. This is also the reason why many sites are spammed with links to other sites to increase those sites’ PageRank score. It is why you sometimes get emails from people you don’t know offering to help optimize your site.
Google constantly refines their ranking system and the parameters that determine page rank have never been publicly available.
If you would like to increase your site’s page rank, the first thing to do is go to Google’s Add Url site. Here you can submit your web site to Google.
Yahoo also has their own submission form.
If you are using a blogging system like WordPress, you should research how the system outputs meta descriptions for your pages. For WordPress, adding something like this to the Header Template’s should help:
<meta name="description" content="SiteName is a site for talking about widgets.">
Having a simple and user-friendly permalink structure in WordPress is also important.