KEYWORD! Where to put key word or the KEYWORD phrase; the keyphrase?
The best place to put stuff is in the best place
You'll discover the best places as your compose your content. Develop your content to captivate an Internet visitor primarily; create something interesting enough for someone to read and that’ll please the search engine too.
Dash your keyphrases in Headings and other word emphasizing techniques but use all the other natural, related keyphrase variations, whenever possible. This is make your content appear important.
Now, from the search engine's perspective, in order for content to appear to be important is needs to indicate intelligence, it’s gotta’ look well-thought out. Uniqueness counts big time too. That's why it's always good to study the English language; continuously; to learn how to write effectively in English; to learn how to write intelligently; too learn the power in antonyms or good synonymous keyphrases; altering prefixes and suffixes as you fly, understand abbreviations, acronyms, how to emphasize a keyphrase interestingly and my personal favourite: morphology. IluvU Searchengines.
Of course, keyword positioning would affect your SEO efforts. Generally speaking, putting your main targeted keywords at the very beginning of your title tags, meta description tags, h1 tags and page contents would be really helpful for this purpose.