Even before I knew about the wonderful DSLreports bufferbloat test, I had started working on a document to help people like that (e.g. Ookla) understand how to do bufferbloat testing.  The document also grew a bit beyond that topic, by the time it was done....

The document is at:

Comments welcome. 

It's intended long term home is the bufferbloat.net wiki, but I've found Google doc's commenting feature really useful.

                           - Jim