With Google Trends, you can compare the world’s interest in your favorite topics. Enter up to five topics and see how often they’ve been searched on Google over time. Google Trends also shows how frequently your topics have appeared in Google News stories, and in which geographic regions people have searched for them most…. Read more about Google Trends here.
Google Trends: Facebook vs Twitter vs LinkedIn vs MySpace
Here’s an example of how Google Trends works. I decided to compare Social Media websites in the “Search Trends” search field.