Two new papers have been published at the Journal of 9/11 Studies. The first is an article by Frank Legge, called "9/11 and Probability Theory". Here is an excerpt.

"If we compare these two explanations for the collapse of the towers it is immediately apparent that they are different in a particularly significant way: the fire based official explanation is a series of events, like links in a chain, while the explosive based explanation is a parallel set of scientific studies of evidence."

http://www.journalof911studies.com/volume/2008/911andProbabilityTheory17Legge.pdf

The second paper is a letter from Kevin Fenton, entitled "WTC Collapse Initiation Floors: What They Were And How Much Damage They Suffered".

"It is interesting to compare the collapse initiation floor in WTC1 to the central impact floors in terms of three of the main aspects thought to have influenced the collapse: impact damage, jet fuel spilled, and debris available to remove fire insulation."

http://www.journalof911studies.com/volume/2008/FentonWTCInitiationFloors.pdf