My cat buddy Horus coughs and sneezes a lot so I typed the symptoms into
google.com.
I learned that heartworms are a possible cause of coughing.
So I visited several web sites about cats and heartworms to educate myself.
Three months later I received in the mail an offer for dog heartworm
medicine.
Coincidence? I think not. Google and/or big data is collecting, saving,
correlating and selling my personal Internet data.
The downside to all this correlation is false data gets entered into your
file.
I have never owned a dog. I like dogs.
There are no heartworm medicines for cats.
Sorry Horus my buddy.

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Another example of being tracked – selling a Supermicro server on craigslist gets me a full page Supermicro server ad in Time magazine.
In January of 2015 I sold several old computers on craigslist including a Supermicro brand server.
I have a subscription to Time magazine in my name and address and in the June 1, 2015 issue there appeared a full page ad for Supermicro servers. I doubt that the typical reader of Time magazine is interested in full page ads for Supermicro computer servers so I suspect the connection was made and I was targeted.
