If you have a job which requires you to produce websites than it is mandatory that you know what search engine optimization means. The SEO is not an exact science mainly because there are so many different opinions on how it works. However there are precise guidelines meant to guide you way to a well placed website in the search engine’s results.
In this area of business it is said that common sense is the best way to do it, it is not in your best interest to force things just because experts say so. For example, if getting your keywords included a certain number of times means that you will have a page very hard to read that you should not do it. When you write information in your website you should always have in mind that those information will be read by users who will not appreciate an unnatural and hard to read text, they want a smooth flowing text.
Because the meta tags have been abused in the search engines you should keep your usage to a minimum. Include in your HTML documents only basic meta tags. The robots meta tag should only be used as a indexer, to indicate that the page is not indexed.
It is preferable that you place your keywords in the title at the beginning, it is more effective if you place it there. Also make sure that you construct your title in the head section of the document. You can also include secondary keyword but just as long as they do not interfere with the flow of the text.
The keywords should be inserted in the page in such a way that you get up to 5% overall density. The simplest example is when you have a text of about 250 words, the best way to get a 2% density is to include the keyword 5 times in the text.
Another advice is that you construct your main page in such a way that the keyword appears twice in the first paragraph, two times in the second paragraph and after that scattered around the rest of the text. Keep in mind that the main key for the page should appear in the very first sentence of the text.
It is preferable that the text you include in you website to be between 250-600 words, 250 being the minimum accepted.