SEMANTIC MAP INTERFACE : http://netzspannung.org/about/tools/semantic-map/?lang=en It provides the user with different possibilities for "rummaging through" the platform's databases to discover content and connections. The Semantic Map was specially developed so that the platform's heterogeneous content could be presented in a common frame of reference.

Java Learning Paths http://java.sun.com/developer/onlineTraining/new2java/learningpaths.html

Sitemap dicussion : http://www.highrankings.com/forum/index.php?showtopic=9399
and another at http://www.highrankings.com/forum/index.php?showtopic=9428&st=0&#entry97137 using Apple's as an example http://www.apple.com/find/sitemap.html

Overview "The Timeline of Art History" : http://www.metmuseum.org/toah/intro/atr/atr.htm
A TimeLine example : http://www.metmuseum.org/toah/ht/09/nfe/ht09nfe.htm See http://www.metmuseum.org/toah/intro/atr/nav_t.htm for how it works.