Last June, the rapidly growing professional social networking site LinkedIn updated its privacy policy and made clear in that statement that social advertising was coming to LinkedIn, and that some personal information could be used in targeting these ads. “The effectiveness of these recommendations is related to the people in a trusted network that it is shared with,” wrote LinkedIn’s Eric Heath in the message, “and one of the upcoming privacy policy changes lets us share your public actions, like recommendations, following companies, etc. on the site with your business network in a commercial context such as an ad.” And…more»