The Lost Sayings Gospel Q
Includes the contents of Q by verse, a synopsis for Q, links to translations of Q, links to resources on Q, an essay in defense of the existence of Q, and introductory information with scholarly quotes.
http://www.earlychristianwritings.com/q.html

The Two Source Hypothesis
Summary of the dominant synoptic theory by Stephen Carlson.
http://www.mindspring.com/~scarlson/synopt/2sh/index.htm

NT Gateway: Q
Links to articles and essays addressing the subject of Q.
http://www.ntgateway.com/synoptic/Q.htm

The Contents of Q
The verses in Q in several lists provided by modern commentators.
http://www.earlychristianwritings.com/q-contents.html

Four-Color Synopsis
The parallel passages of Matthew, Mark, and Luke in the original Greek with color coding. Useful for identifying the double tradition material that makes up Q.
http://www.mindspring.com/~scarlson/synopt/harmony/

A Synopsis for Q
The parallel passages between Matthew and Luke that are thought to represent Q are presented.
http://www.earlychristianwritings.com/q-synopsis.html

The Canonical Status of Q
Mahlon Smith argues that Q belongs in the scholar's canon.
http://religion.rutgers.edu/jseminar/q_canon.html

The Existence of Q
A scholarly defense of the Two Source Hypothesis according to which Matthew and Luke used Mark as well as a second non-extant source termed Q.
http://www.earlychristianwritings.com/q-exist.html

Q // Thomas Parallels
The parallel passages between Q and Thomas as presented by Stevan Davies.
http://www.misericordia.edu/users/davies/thomas/thq.htm

William Arnal's Summary of Kloppenborg's Q Stratification
An abstract of Kloppenborg's thesis of the formation of Q in successive stages.
http://www.misericordia.edu/users/davies/thomas/billklop.htm

Q Sayings in Luke
The Q material as found in Luke and presented by Stevan Davies.
http://www.misericordia.edu/users/davies/thomas/q.htm

All about Q
Paper arguing that Q is a late ,80 C.E., document.
http://www.geocities.com/b_d_muller/q.html

The Real Jesus of the Sayings "Q" Gospel
James M. Robinson maintains that the historical Jesus is best revealed in Q.
http://www.religion-online.org/showarticle.asp?title=542

Burton Mack's Translation
The text of Q as presented in The Lost Gospel by Dr. Burton Mack.
http://www.cygnus-study.com/pageq.html

The Case Against Q
Mark Goodacre argues against the Two Source Hypothesis in favor the Farrer hypothesis, according to which Luke obtained the "Q" material from the Gospel of Matthew.
http://ntgateway.com/Q/

The Synoptic Problem
A defense of the Two Source Hypothesis, according to which Matthew and Luke based their gospels on Mark and Q.
http://www.bible.org/page.php?page_id=669

The Q Source Based on Luke
The text of Q as preserved in the verses of Luke and presented by J.B. Tabor.
http://www.religiousstudies.uncc.edu/jdtabor/Qluke.html