Magento

Hi,

Is there a way that registered users can see if the product they are viewing was bought by one of their friends on FB, Google etc.?
Can this be an attribute which displays in the category listing, specifying that ‘5 Friends Bought This’.

Also, is there a way to recommend products to friends directly?

I am sure this would require sign in with Google, FB accounts so a complete extension that does this would be helpful.

I searched on Connect but could not find a suitable extension.

Thanks.