# Tools to identify trends - [Google Trends](https://www.google.com/trends/) - [Glimpse - Discover Trends Before They’re Trending](https://meetglimpse.com/) - [Exploding Topics - Discover the hottest new trends.](https://explodingtopics.com/) - [Trends.vc --- Discover New Markets and Ideas](https://join.trends.vc/) - [Beta List](http://betalist.com/) - [App Annie - The App Analytics and App Data Industry Standard](https://www.appannie.com/) - [Consumer Barometer](https://www.consumerbarometer.com/en/) # Market sizing - [How to calculate your total addressable market and make a great TAM slide | For Entrepreneurs](http://www.forentrepreneurs.com/calculating-tam/) - [MarketLine :: Browse](http://advantage.marketline.com.ezproxy.hec.fr/) - [Statista](https://www-statista-com.ezproxy.hec.fr/) - [Euromonitor International - Home](http://www.portal.euromonitor.com.ezproxy.hec.fr/portal/magazine/homemain) # Competitor research - [Are your future customers using another product? - Inside Intercom](https://blog.intercom.com/your-future-customers-are-using-another-product/) - [Stop Ignoring Your Competitors And Learn How To Do Competitor Analysis Instead -- Product Habits](https://producthabits.com/competitor-analysis/) - [How to Figure Out Your Competitors' Revenues in About 70 Seconds | SaaStr](https://www.saastr.com/how-to-figure-out-your-competitors-revenues-in-about-70-seconds/) - Track website changes: [Visualping](https://visualping.io/)