rel
to your blogroll links
<a href="http://adam.example.com">Adam</a>With XFN:
<a rel="friend" href="http://adam.example.com">Adam</a>
rel="relative"
- outside immediate familyrel="contact"
- less than "acquaintance"rel="me"
- connect the sites that represent yourel
attribute<a href="http://gmpg.org/xfn/">XFN</a>With VoteLinks:
<a rel="vote-for" href="http://gmpg.org/xfn/">XFN</a>
profile
attribute is key<head profile="http://gmpg.org/xfn/1">...or several:
<head profile="http://gmpg.org/xfn/1 http://developers.technorati.com/wiki/VoteLinks">...to a document
“The trick.... is to make sure that each limited mechanical part of the Web, each application, is within itself composed of simple parts that will never get too powerful.”(Tim Berners-Lee, Weaving The Web)