Wahl and Ammann 2007 does not appear to adequately address gd1's points. It just applies a slightly different statistical approach using the same flawed premise.

There are countless arguments and rebuttals to be found on both sides of the debate, but I've found the ones below to be particularly helpful:

Pro Hockey Stick:

[1] Original MBH98 paper (PDF): http://stephenschneider.stanford.edu/Publications/PDF_Papers...

[2] Wahl and Ammann 2007 (PDF): http://www.cgd.ucar.edu/ccr/ammann/millennium/refs/Wahl_Clim...

[3] Wikipedia article: http://en.wikipedia.org/wiki/Hockey_stick_controversy

[4] Real Climate Hockey Stick "Dummies Guide" (PDF): http://www.realclimate.org/dummies.pdf

Skeptical of Hockey Stick:

[5] Skeptic blog post "Casper and the Jesus Paper": http://bishophill.squarespace.com/blog/2008/8/11/caspar-and-...

[6] "The Hockey Stick Illusions" book (same skeptic author): http://www.amazon.com/The-Hockey-Stick-Illusion-Climategate/...

[7] McIntyre & McKitrick 2003 (PDF): http://climateaudit.files.wordpress.com/2005/09/mcintyre.mck...

Thanks. It would definitely have been better for those listening to this discussion to hear your counterpoints rather than me having to go look it up in a sea of words. Especially since I'm not really interested in the field. Also, you called his criticism simplistic without explaining why. Not very good manners.