Yes, we thought about adding some social layer (purchase sharing etc.) to our e-commerce site http://www.happybuy.com/ http://www.happybuy.com/ but have always

Yes, we thought about adding some social layer (purchase sharing etc.) to our e-commerce site http://www.happybuy.com/ http://www.happybuy.com/ but have always been skeptical of the notion that people want to share purchases. We've focused on trying to help people get the best prices on their purchases (currently through price tracking and alerting) and potentially users would be more willing to share bargains/good buys as finding bargains may be something that a certain type of user would want to share, inform or brag about to friends. However as Blippy has shown I think the model of simply sharing your purchases without a reason for that sharing does not provide any particular user value.