Tools to spot internet business opportunities

I love these tools that help you spot business opportunities based on data. Here are 5.

1. buildthekeyword.com Find product ideas that will have customers on auto-pilot

2. appfigures.com See what people are searching for in the app store

3. junglescout.com See which products work well on Amazon

4. alura.io See what shoppers are searching for on Etsy

5. meetglimpse.com Discover trends before they are trending

Do you know any others?