Perhaps keyword is the most effective tool you can use to help your blog/ website to get higher rank in most of the search engine, especially Google. Hope you can understand the importance of search engine rankining to earn from google adsense. Keyword is such an effective tool that should be used as SEO tool of webpage to increase SERP.

Using effective keyword in URL or domain name is always given prime importance by webmasters as an effective SEO tool. The keyword in the article's URL will be visible throughout the webpage while the visitor navigate throughout your website. Search engine also prefers this type of sites due to its relevany with the content of the site and give it better ranking while someone search for the keyword, thus it is among one of the better SEO strategies adopted to get higher position among search pages.

Keyword in title tag is perhaps the second most important thing that helps both the user and the search engines to find the relevancy with the search keyword. Thus use of the keywords in the title tag will help the search engines to give better position in their search results. Basically this is the keyword or keyword phrase used in title tag, which draws visitors using different search engine terms and techniques. So, its better to use the keywords in title tag capturing all and using most effective among them. But remember to keep the title restricted within 5 to 8 words for better ranking.

Keyword density is also considered by search engines to collect information about the category or theme of the website. The keyword density is used to determine the relevancy of the website with the search keyword by the search engines. But the density of keyword used should be optimum to get better result (1 to 3% is considered as optimum). Too low will not yeild desired result and too high keyword density will be considered as keyword spamming.

Search engine ranking can even be made even better by using anchored keywords. Often such anchored keyword are underestimated in SEO process and at most places of anchoring the word click here is used, which is a bad SEO practice. Instead the related keyword should be used as anchor text, this not only gives a clear conception to the visitors of the webpage about where they would be taken after clicking the link and also provides a clarity to the search engines about the relevant link to display for certain search. This also reduces the bounce rate around the click here links.

Keywords in heading

Headings are literally used to divide the topic on the page into several subtopics. It may appear pointless to use headings after every paragraph. But from the SEO point of view it is a good practice to use heading before start of every topic and sub topic with keywords incorporated within it. Remember to keep the heading small and to the point, lengthy heading is a bad SEO practice. The headings with keywords in them helps the search engine to target specific subtopic and provide better position in natural search.

Keyword in the begining of the article

Search engines provides priority to those webpages where the article begins with the keyword or keyword phrases. The reason being that since the search engines finds the keyword at the begining of the article helps them to establish the relevancy of the article with the search term, thus provides better position to the site in the search result.