The document discusses how social networks can be made more interoperable by adopting common standards like microformats to publish user profile and friend network information. This would allow profile and friend data to be portable between sites and avoid siloed data. Specific microformats like hCard and XFN are presented as ways to mark up user profiles, links to other profile pages, and friends lists so they can be reused across sites to connect the social web in the way the original web connected via hyperlinks. Examples are given for how to implement hCards and XFN in profiles, profile equivalency links, and friends lists.