I've noticed that when I am reading about something online, and I open a new tab to google something was I reading about, whatever I had in mind comes up almost immediately in the suggestions.
For example, I was looking up the soundtrack to a tv episode. I was interested in one of the songs, so I opened up YouTube and started to search it. All I typed in was the first letter, and the song name was already at the top of the search suggestions. And this is an old, obscure song.
The only conclusion I can draw is that Google reads the text of web pages you have open, and uses that information to improve any near-future searches. Am I right? If so, what is this feature called?
Best Answer
Google does an impressive collection of data via searches, analytics and the other stuff, because "data is the new petrol".
I think the feature you describe is based on their prediction engine for the auto-complete feature which is documented here https://support.google.com/websearch/answer/106230
There you will find that some data is collected from the user activity in order to provide personalized results.
As Al E already said, they read the text regardless of your interaction with the page, the real question is "how do they make the connection ?"
Well, via "Web & App Activity"