The Blogger's Goal: High PageRank

PageRank is a ranking software that assigns a numerical weighting to each element of a hyperlinked set of documents based on the relevance of the webpage to the search keywords entered. The weight assigned by PageRank is from 0 to 10 depending on the webpage's relevance (0 = low relevance; 10 = high-relevance). The software analyzes both the number of incoming links and the authority on the subject matter of the referring webpages to generate a relative measurement within the set. The name PageRank is a trademark of Google.

Now, what does this mean to you? Remember the last time you searched for a particular keyword in google, what appeared on top of the list? What dictates which webpage to be listed first? It is PageRank: webpages with higher PageRanks appears on top of the webpages with lower weights. To illustrate the importance of PageRank, the following screenshot shows that Wikipedia's webpage appears on top of the list when searching for the keyword "page rank".
Opening Wikipedia's webpage related to "page rank", the toolbar shows that its PageRank (or Google's view of the importance of that page) is 7/10. If you would check the other webpages after Wikipedia on the list from the previous screenshot, they would have importance of 7 or below. If you cannot view the PageRanks of the pages you are viewing, you may want to download the Google toolbar.
Being first on the list of search results would be any bloggers wish. Why? Because if not always, it is usually the first search result that is being viewed by people searching for a particular keyword. It is thus a blogger's goal to have his blog/website to get as high PageRank as possible.