[samoraai]

Crazy! I read this HN thread on Safari on my mobile that i never use to access Facebook... a few hours later I’m on Facebook on my laptop in Chrome incognito mode, and one of the first ads that shows up is for Voltaren...how in the world?!?

[prox]

Your IP? And your mobile and laptop have been fingerprinted earlier to belong to the same person?

[christophilus]

IP address, maybe?