Here are four jazz lists I found. It's too much to type so I will just post the links.

The 101 Best Jazz Albums: A History of Jazz on Records
http://people.qualcomm.com/determan/Jazz.html

Jazzitude Essential Jazz Recordings
http://www.jazzitude.com/essential.htm

Pete Kirchoff's 20 Essential Jazz Recordings
http://www.wkyufm.org/JazzPicksPrintversion2004.htm

Cultureciosque Essential Jazz Recordings of the 20th Century
http://www.culturekiosque.com/jazz/best/rhecd2.html

You need a password to see the last list. You can get it at bugmenot.com.