'Like' Button Follows Web Users
If you use Facebook and/or Twitter, read this
Internet users tap Facebook Inc.'s "Like" and Twitter Inc.'s "Tweet" buttons to share content with friends. But these tools also let their makers collect data about the websites people are visiting.
These so-called social widgets, which appear atop stories on news sites or alongside products on retail sites, notify Facebook and Twitter that a person visited those sites even when users don't click on the buttons, according to a study done for The Wall Street Journal.
These widgets are prolific. They have been added to millions of web pages in the past year. Facebook's buttons appear on a third of the world's 1,000 most-visited websites, according to the study. Buttons from Twitter and Google Inc. appear on 20% and 25% of those sites, respectively.
Read the rest at
http://finance.yahoo.com/family-home/article/112769/like-button-follows-users-wsj
Seriously, read this article.
And this one: The Privacy Risks of ID Codes in Your Apps
Internet users tap Facebook Inc.'s "Like" and Twitter Inc.'s "Tweet" buttons to share content with friends. But these tools also let their makers collect data about the websites people are visiting.
These so-called social widgets, which appear atop stories on news sites or alongside products on retail sites, notify Facebook and Twitter that a person visited those sites even when users don't click on the buttons, according to a study done for The Wall Street Journal.
These widgets are prolific. They have been added to millions of web pages in the past year. Facebook's buttons appear on a third of the world's 1,000 most-visited websites, according to the study. Buttons from Twitter and Google Inc. appear on 20% and 25% of those sites, respectively.
Read the rest at
http://finance.yahoo.com/family-home/article/112769/like-button-follows-users-wsj
Seriously, read this article.
And this one: The Privacy Risks of ID Codes in Your Apps