Google Trends

Google Trends visualizes the popularity of search terms across time.  The front page will inform you what searches are trending at the time of your visit.  It is a Google search function so you can look for the trend over time of your interest.  Once you have done the initial search, a number of menu options appear.  You can make comparisons across time or regions.

To learn more, check out the Google Trends Help Center.

Hat Tip to Online Searcher

Ernster, the Virtual Library Cat