http://zqktqfoeepjarikwyaw2j5f7rscyeb7bx62a2u2o2ajmxcl46c7xeiid.onion/index.php?title=The_Matrix&action=history
What would they have to say about what books you like to read? How about Google, and the types of adword sites you are typically presented on the search website/via gmail? Google and many other search engines maintain indefinite logs of who searches for what keywords, along with lots of other data .