There are many utilities and sites to help you focus on your search engine ranking. One such site is Top25Web which has a handy script to test your ranking in Google by search phrase or term. Here's how it works:
You enter a search phrase that you want to establish as highly ranked for your site. Let's say, for example, that your site or blog focuses on wine from the Napa Valley. Obviously you would want "wine" to lead to your site. However, that is probably never going to happen. What you would need to focus on are people searching for a combination of wine and Napa and concentrate your efforts on the search phrase "wine Napa" rather than "wine." Why? Because wine is too generic and broad a search for most sites to be able to ever cash in on. Even if your site is ranked 5 or 6, the odds are you would be off the first page of Google hits.
So, you concentrate on searches you can win and searches that will attract someone specifically looking for what you have to offer. If you determine you want wine and Napa and maybe some other key words like "tasting" and "body" and "bouquet" and "chardonnay" then you start to get the picture of what your site needs.
That is where utilities like Top25Web can be handy. As you start fitting your key words into titles, blogs, site description and so on, you then check to see how Google is placing you in relation to these terms. If after a few months a particular phrase is still not doing well but another phrase is, then you know that you need to make some changes and perhaps concentrate more on the phrase that is doing well.
For example, according to Top25Web a search on "Blogger" puts Blogger Forum as #17. However, a search on "Blogger Help" puts Blogger Forum #1 in Google search returns. Using this utility and others like it can help you see where your strong points are in key phrase searches and where you are weak and need some beefing up.