One of the things to remember about Google PageRank is that it does contribute to relevancy in a number of ways, but it is only just one bit out of a huge range of influences. Did you know the Google PR number is somewhat out of date (usually by about 3 months) so what you see reflected in the bar does not always represent your current PR.
How high should your PR be in order to rank well?
That depends on your keyword phrase, the competitive volume for that phrase and for which industry you are using that phrase. Don't forget that Google themselves tell you there are "200 ranking signals" and PR is only just 1 influence.
Best advice is to have a PR of 4 or 5 and then stop obsessing over the PR factor.
Google PR is important primarily for in-coming links. The Google PR of the page itself does not have as much influence as it once had to for help in ranking for specific keyphrases. However, the PR of an in-coming key word phrase-relevant link does help with ranking for that specific keyphrase.
About Google site links:
What are they?
Sometimes when you do a search on Google for a phrase, you'll occasionally notice a collection of links which will appear below the result of a website.
Example: If you search for the phrase "Search Engine Workshops" on Google, what you see displayed in the search results is:
TITLE: Onsite search engine workshops taught by industry leaders Robin Nobles & John Alexander
SNIPPET
Onsite search engine workshops offer personalized SEO training and certification in search engine marketing strategies.
URL: searchengineworkshops.com - 42k
But then now note the additional Google site links that show up below the snippet
description that appear as follows:
View the 5-Day Agenda Our Partners
Register Now Start-Up Tools Arsenal
Workshop Dates Articles
Student's comments here
More results from searchengineworkshops.com »
Each of these are additional links are to main pages of the website.
Theses extra links are randomly and automatically chosen by Google.
Tips about sitelinks:
-Google seems to prefer links near the top of a web page.
-Sitelinks usually only appear for more general search phrases.
(in other words for phrases being searched)
-Sitelinks show up more often on brand related searches.
- Unpopular Keywords that are not searched too often don't get Sitelinks.
- Older Web sites seem to be awarded sitelinks more than newer sites.
-It also seems that your website has to get a certain volume of
clicks for the searched keyword.
Although theses extra links are randomly and automatically chosen by Google there is a place in Googles Webmaster tools where you can select which pages you prefer to be displayed. But there is no way to guarantee you'll get the site links as it is at Google's initiative.
