I have been collecting pine sap for the past three months and finally had enough to make my glue.  I collected camp fire charcoal, and some elk dung from Missouri's wild elk herd.  
I heated my pine sap, once it was boiling I added the ground elk dung and charcoal.  I used some of the tutorials found on the PA website.  It worked out pretty well for my first attempt.  I made several pitch sticks.  I will continue to collect sap because I want to make and Aztec sword, and some arrows.  I anticipate needing a little more pine pitch glue.