Despre pecete

[AlinB]

Nu e un concept nou, asa functioneaza si serviciul "gratuit" facebook.

The price of free: how Apple, Facebook, Microsoft and Google sell you to advertisers
Here's what popular services like Apple, Google, Facebook, and Microsoft collect -- and what you can do about it.

http://www.pcworld.com/article/29869...vertisers.html

Da' de aici la "pecete" ...