SEO or the full form of the term search engine optimization is the newest job opportunity for a lot of people. You are probably now feeling interested in the whole thing because it talks about jobs which means possible job offers. Reading up to this may not have cleared everything for you; rather probably the whole thing has become more confusing for you.
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So, here goes a little explanation of the thing that you are looking for. SEO is not an unknown concept anymore; rather the whole world is becoming familiar with the idea. People, who have their own websites and are looking forward to earning money, do business with the website, they are aware of the concept and they are using the concept to their aid.
Marketing is indeed a very important part of the business. If you want to do good business you have to take the market of your product well, otherwise, you will not be able to succeed. Maybe your product is very good, but if people won't get to know about it, they will not buy it and as a result of that.
So, good marketing is part of a good marketing strategy. So, SEO marketing is also a part of the strategy for people who are interested to make their website not only good but also profitable.
SEO is that service which actually helps your website to get a prime slot in the search engine, which means if someone searches a certain search engine with a particular keyword on which the website is based then your website, will be there in the first 10 or 12 results of the first page.