So, if Google reports 1000 searches per month for a specific phrase, you may safely infer that the true search volume is 2000 or more. The first and best method is to use Google Adwords Keyword Planner. It's free to use (provided you can afford Google Ads), easy to understand, and will help you find popular keywords related to your product or service. Google Adwords Keyword Planner creates a list of suggested keywords related to your chosen topics. They claim to pick the most relevant keywords based on how often they are used by advertisers looking to promote their products via Google Ads. Once you have selected some keywords it would be useful to see how many times they were used by other advertisers. This will give you an idea of how competitive the market is for each one. If one keyword has been used a lot more than others, this will show that there is still room for it to become very popular. Otherwise, it might not be as attractive a prospect for advertisers who had only planned to pay for ads on certain sites. Finally, you should check what position these keywords hold in the context of advertisements displayed on Google Search. This will tell you which words people are using when they search the web and how likely it is that they will click on an advertisement shown alongside these results.