Six Degrees of Kevin Bacon (Movies)
<p>
<a href="http://oracleofbacon.org/">
http://oracleofbacon.org/</a>
<p>
Erd&ouml;s Numbers (Math Research papers)
<p>
<a href="http://www.oakland.edu/enp/">
http://www.oakland.edu/enp/</a>