Since Google is constantly updating their algorithms in order to find and filter out flimsy content, it's crucial to maintain valuable and high quality content on your website. Many businesses assume that they don't need to worry about keyword research. They think they know what terms people use to find what they sell, and they also assume that Google understands the content on their website. This is incorrect on all counts. Pick a niche that has a large enough appeal to give you a big market but at the same time, pick a niche that won't be too competitive for you to make any dent in. Look for subject matters that cater to a specific audience and that people can really get passionate about. Whatever shows up in the search results box has been searched for before meaning these long tail keywords could be very valuable. But remember these just give you a starting point to work off, people have Googled some quirky things so don't think just because something shows up that it will make a good long tail keyword. Google suggestions give you a great place to work from but shouldn't always be taken at face value. Custom development takes time.