Are you planning to start a new website or blog or sales page to sell some affiliate? Before starting a new site, I suggest you to research the niche from several factors. It might too late to think, is this a correct niche after a year starting the blog or website. I have seen blogs that gets more than 5k unique visitors per day but not making good return because their niche is in myspace. Some blogs in real estate niche get less than hundred visitors a day but helping the site to make four figures monthly. It is totally depends on the niche that you are going to enter.
I have strong interest in SEO but this field is very competitive as there are 185 million pages and I need to competed for a maximum PPC of $3-$5 per click. Usually, the average earnings give less than a dollar. Of course, there are other high paying niches like loans, real estate, etc with similar competition. PPC for these sites can deliver on average of $5-10 per click. I used to be a Mortgage Sales Officer before quitting my daily job to blog full time. I just noticed that “mortage” is one of the highest paying niches in online industry. I wish to start a mortgage blog instead SEO blog
Going trough set of keywords from Adwords Keyword External Tool will certainly gives a clearer picture on our future earnings in from google ads. If you plan to start a new blog, try to choose something that is in your interest and high paying niche. Choosing something interesting but low paying niche will not really help us in long run too. We need good paying advertisers in order to support a blog in long run. So, choosing a high paying niche is extremely important. If you already own a blog, try to research several high paying related keywords and include it in your posts. It might help to bring in some extra revenue from your blog.