profiles

The XFN 1.1 re­la­tion­ships meta­data pro­file. Used like so:

<link rel="profile" href="http://gmpg.org/xfn/11" />

Which I love if only for the fact that the list of ac­cept­able re­la­tion­ships in­cludes things like ‘crush’, ‘muse’, and ‘sweetheart’. Just goes to show that if it ex­ists, we can turn it into a spec:

Sweetheart:
Someone with whom you are in­ti­mate and at least some­what com­mit­ted, typ­i­cally ex­clu­sively. Symmetric. Not tran­si­tive.