The idea that HyperTexts should attach types to links.
RandallTrigg's thesis :
** Introduced by MarkBernstein : http://www.eastgate.com/HypertextNow/archives/Trigg.html
There's a blog : http://is2.xspaces.org/TypedLinks
DavidWeinberger suggests social links are typed : http://www.corante.com/many/archives/2004/08/24/typed_links.php#comments
There are typed links on ThoughtStorms. For example (WarpLink) (and I suppose (IoB) )
TechnoRati just introduced them for the internet : VoteLinks
See also :