Organic Search Engine Marketing needs a focus. In order to focus on what to market for, you need to have a solid foundation of the main keywords that best describes your business and/or products that you are selling. These main keywords are one to three phrase keywords (or keyword phrases) generally speaking and are more than likely highly competitive. These keywords are known as "Short Head" keywords. A good example for this is, "car insurance."
After you have decided on your short head keywords, you will want to market directly to more specific, longer keywords related to the main short head keywords. These longer, more specific keywords are known as Long Tail keywords. A god example is, "car insurance discounts in Georgia."
Though the traffic for each long tail keyword is usually much less than its short tail relative, if you sum up all the long tail keywords, they usually provide more traffíc and most importantly, targeted traffíc, than the short tail keywords alone.
Once you have targeted the long tail keywords for your business or niche, then you can start marketing for them.
The cornerstone for organic search engine marketing is unique content creation. Whether it's 500-word articles, blog posts, blog comments, forum posts, social snippets, or videos, you will need to create unique content based on your long tail keywords.
Web 3.0 is a term that refers to the future of the World Wide Web. In my opinion, that future includes the "Semantic Web" or web use affected by artificial intelligence. Semantic Web means that search engines will be able to understand what a web page is all about in a different, more intelligent way. The major idea here is that search engines will take a more encompassing view at a page and understand its meaning rather making a determination based on figuring out which keywords pop up most often. In this new Web 3.0 scenario, a search engine might find a web page on "sun tanning in Florida" to also be quite relevant to "sun tan oil application" and therefore líst this example page in the search engine results pages under both keywords.
What does Web 3.0 mean to you? Basically, when creating unique content, keep the semantic web concept in mind and use synonyms for your target keyword wherever it's natural. Don't stuff keywords in your content, i.e. use a keyword just to use it and not when it should be used naturally...and don't stuff keyword synonyms either!