Over the years, Facebook has learned a lot about you and its hundreds of millions of other users. This knowledge has coincided with the rise, in online advertising in general, of ads that are targeted to you based on your demographics and your behavior, such as which Web sites you’ve visited—the approach that explains why, after you considered buying a pair of shoes online but changed your mind, you started seeing shoe ads on other sites. Studies have shown that ads are more effective—that is, they’re more likely to translate into Web site visits and purchases—when they’re targeted like this.
(Curated by Dennis Moore. Read the complete article here)