SEO has changed drastically in last few years, especially in last year, so old tactics are no longer working, at least not alone. As it is in any industry, if you want to stay on course you need to follow latest SEO trends. In SEO it is really common sense. Basically if you are making your websites for people, Search Engines especially Google will find their ways and will rank your site very good, but there are ways to jump start or boost your rankings even more.
The key is doing things naturally(natural SEO). If you don't follow this simple rule you can make it only worse,so if you don't know what you are doing, it is better to don't do it at all.
