Facebook to add a "Want" button to aid social shopping

You've probably noticed all the changes to Facebook lately!  And from what I hear, they are not done yet.  


Facebook users will soon have a way to alert their friends when they see a product they covet for sale via the social site. The new "Want" button will offer Facebook and retailers greater insight into customers' desires and help them target ads to users, according to this analysis at InternetRETAILER