There was nothing similar around, so I thought it was time to create a master list, with workprints, TV versions not available on released media, and similar things. I gathered around 1000 entries, almost all are different titles. As usual, correction and addition are welcome. Have fun!
WORKPRINT - Master List: http://blog.sporv.com/workprints-master-list
You may be interested in this, too:
OPEN MATTE - Master List: http://blog.sporv.com/open-matte-master-list
FAN EDITS - Master List: http://blog.sporv.com/fan-edits-master-list/