links for 2007-07-13 eFoundations: OpenID and education OpenID and Education. (tags: openid toread) Unit Structures: Are Tags Vannevar Bush’s “Trails”? From 04/06 – “Tagging systems don’t work because a ton of people use them; they work because tags are valuable to us. “ (tags: tagging refindabilty Folksonomies) 0000-0002-8860-7565