juliobm algunos videos algunas notas algunos scripts aprendiendo


  1. I'm logged with my Google account.
  2. I'm not logged in twitter
  3. searching for buying a new car. It is my first time looking VW web page.
  1. I'm not logged in any Google service.
  2. I'm logged in twitter
  3. i didn't use this browser to search any car.

and finally........:    First twitter ads promoted in my timeline:  VW Polo car

Twitter, did you look for cookies of another browsers?