Option to connect with others and an option to view their collection.

You can view other collections but only if someone shares that collection somewhere else.  Or you know that person somewhere else.  So we don't have the social component in terms of finding fellow collectors and connecting with them, but if you connect somewhere else you can view their collections.

I'd love to hear your thoughts on how a "connect with others" feature would look.  What features would it have?  How would you connect?  etc?