Q's existence is an interesting topic for the historical scholar types; I'm personally inclined toward the view it or several existed, and that the bulk of it is accurately reflected in the three synoptic Gospels and that proto-orthodoxy existed well before the Jewish Revolt, but in any case this site offers some interesting opinions as well as a bibliography of the better books on the issue. I have no idea what Sloan's personal theological leanings are, and don't particularly care, the site is worth a scan at least. At worst much of the info confirms yet again the Gospels were all written by separate people and not, as many ignorant idiots claim, some 'con man' or other.
Home - Reconstructing Q
Q: Sayings Source or Narrative Gospel?
This website is devoted to the research into Q by David B. Sloan, Ph.D. For the last 150 years, most Gospels scholars have been convinced that when Matthew and Luke wrote their gospels they used Mark's Gospel as a source, but they did not use each other's gospel. When Matthew and Luke share material that they did not derive from Mark, they are dependent upon a now-lost source, which scholars have named Q. Since most of the non-Markan material Matthew and Luke share is sayings of Jesus, this source has been assumed to be a collection of sayings or speeches of Jesus. Dr. Sloan argues that there are three problems with current ideas about Q:
Sloan's views here. I haven't had time to read this one yet.
http://reconstructingq.com/maximalist-q.pdf
Home - Reconstructing Q
Q: Sayings Source or Narrative Gospel?
This website is devoted to the research into Q by David B. Sloan, Ph.D. For the last 150 years, most Gospels scholars have been convinced that when Matthew and Luke wrote their gospels they used Mark's Gospel as a source, but they did not use each other's gospel. When Matthew and Luke share material that they did not derive from Mark, they are dependent upon a now-lost source, which scholars have named Q. Since most of the non-Markan material Matthew and Luke share is sayings of Jesus, this source has been assumed to be a collection of sayings or speeches of Jesus. Dr. Sloan argues that there are three problems with current ideas about Q:
Sloan's views here. I haven't had time to read this one yet.
http://reconstructingq.com/maximalist-q.pdf