Let me introduce to you hypertextual.net

In a web semantic manner, I work on a hyperlinking system that allowed users to organize and associate multiple links with any object (text, image sound or video) in an electronic discourse.I'm not only focusing on navigation, but necessarily on discourse generation. Unlike conventional search engines, Semantic Link enables you to find pertinent philosophical thoughts even if you do not have extensive knowledge about a subject.

You can join also

www.metabole.blogspot.com
www.metabole.typepad.com
www.frenchtheory.com
www.hypertextual.net
www.metabole.net
www.phonereader.com