Google Correlate
Google Correlate is a program that was released by Google in 2011. It's a near relative of Google Trends - in fact, it's Google Trends in reverse (and just as powerful).
Due to poor use, Google has informed that Correlate will be shut down on December 15th, 2019. Make sure you obtain your data as soon as possible! I'm going to leave this page up since I think the technique is beneficial – even if you have to "hack" additional tools (like Trends and Ahrefs) to acquire data that's similar to what Google Correlate gives.
Since its introduction, it has generated some attention and proven to be a valuable tool among academics, but unlike Google Trends, it has never become a common tool among marketers. There are several explanations for this. Google hasn't made Correlate as well-known as the rest of the Trends toolset. Correlate even includes features that break on occasion. But I believe the delayed uptake is due to marketers' lack of understanding of Google Correlate's potential - or even how it works.
- Best For: Marketers, Business Owners
- Cost: Free