Architects & Engineers (Website)
Architects and Engineers – Solving the Mystery of WTC 7 (15 min. Video)
Pilots for 9/11 Truth (Website)
9/11 INTERCEPTED (42 min. Video)
World Trade Center Attack (45 min. Video)
Military Officers for 9-11 Truth (12 min. Video)
U.S. Military Officers for 9/11 Truth (Website)
Commissioned and Non-commissioned Officers for 9/11 Truth (Website)
Hollywood Speaks Out for 9/11 Truth (2 hr. 30 min. Video)
Political Leaders for 9/11 Truth
Religious Leaders for 9/11 Truth
Activist Families for 9/11 Truth

The NIST investigators are professionals for 9/11 truth too. I’d suggest reading NCSTAR 1, 1A, and 1-9 if you don’t understand the WTC collapses any better than the people you mentioned.
albury smith, gormless shill
http://www.cannabisculture.com/node/28471?page=1
Albury Smith, (demonstrable shill for zionist israel, gormless lying troll ) loves to argue about the times for building 7 to come down.
It doesn’t matter if it took 10 seconds or 20 seconds, because, as NIST themselves have begrudgingly acknowledged, Building 7 did it fact reach free-fall acceleration for a period of ~2.5 seconds.
In order for this to happen, according to all known scientific principles currently understood, building 7 must have been falling, for this time, through NOTHING BUT AIR!
Not weakened steel, not cement, not even a stack of playing cards. Nothing but air!
that means, that ALL support, across the entire building, over several floors, must have been removed, INSTANTANEOUSLY and SIMULTANEOUSLY.
This is IMPOSSIBLE to achieve by fire alone, and without some sort of controlled explosive, and impossible for Albury to explain otherwise.
The NIST report, that has received considerable criticism by many credible professionals, for being unscientific and incomplete, ( similar failings to the 911 commission report ) fails to offer any explanation for free fall acceleration, their modelling does not reflect real world events, it assumes how the building “probably” came down, and their model cannot be proven or disproved, as they refuse to release the full input data that would be needed to replicate the model, on the grounds of “National Security”
Albury Smith pretends to be some sort of arbiter on all things to do with 911, and as you will find via a simple internet search for “Albury Smith 911 Truth” he has spent years trolling every website that mentions 911, to post his misinformation, disinformation obfuscation and lies, wherever he can, and you will see how he repeatedly demands answers from anyone who has the slightest doubt about the official version of events, to explain any straw man Albury can build, to his personal satisfaction, while he refuses to reveal his true identity, or any qualifications, pretending to be the worlds expert on 911.
There is no evidence that stands up to scrutiny to support the official version of events, and there are thousands of pages of credible evidence, that shows the official story cannot be true. This is the consensus of thousands of professionals from all over the world, from a variety of professions, and the call for an independent transparent unfettered investigation with subpoena power is supported by a large majority of the worlds population, and is growing every day, despite the best efforts of Albury Smith and his ilk.
/tldr – any of the links in the article