A focus keyword is the keyword for which you want your content to be ranked at Google. Gone are the days of stuffing random keywords that have no relation to the text on the page. That is a topic for a whole other blog post but take our advice,,, it will only hurt your page rank.
If your blog is in a competitive industry then chances are that you will be competing with many other established and reputable publications for popular keywords. In this situation, you can get more organic traffic by using long tail keywords. A long tail keyword is one of the best methods for generating search traffic. A long tail keyword represents a more natural way to search. It is much easier to rank for long tail keywords than for more common keywords. For example if you are fitness club in Westport CT, you will not want to spend your efforts ranking for “Fitness Clubs”. This is a highly competitive keyword and will require not only a tremendous effort but lots of money in adwords. You will receive better search results but using “Fitness Clubs in Westport CT” as your focus keyword.
The highest ranking focus keywords are going to be those that are used often in the post, starting with the title. Some SEO experts believe that Meta description tag on a page has become irrelevant while others would strongly disagree. As a rule of thumb I would always use meta description for all of your posts and pages. A good meta description will be shown in social media sites like Facebook and in Twitter via Twitter Cards. You also want to make sure that you at least mention your focus keyword in the meta description for search purposes. The character limit for Meta Description is 155 characters. Stay within that limit or your meta description will be removed after 155 characters. Try to use your focus keyword earlier in the meta description to avoid this.