Google Trends is a powerful free tool that shows the change in search-interest of products, people, or other information over the course of the year. We can use it to determine when people will be looking for certain products or other information. This is very useful for e-commerce, affiliate marketing or any other online business. If you know when more people are googling "sandals" then you know when to sell sandals. This makes it a great tool for general product research. Subscribe below to get a copy of the Google Sheet I use to do product research with google trends. It does not do the research for you but rather provides a way to quickly access the trends results and make notes. Subscribe and I will keep you aware of other useful resources I may create or find.