I read the link too, and I find the information to be bogus , historically and technically, I think the writer is trying to build some "MOJO" into poplar, woods that need grain filler lose tone because the pores of the wood are filled up with all that "gunk", so I guess all those thousands of guitars that have been built from mahoghany sound bad ?, toneless ?, so if you own a Les Paul, PRS, SG, Explorer, Flying V, etc,etc.. , you should dump that tone dog and run out and grab one of this guy's poplar tone wonders, that link has more fairy tales in it that the Brothers Grimm Library, the only thing I can agree with is poplar as a tone wood is ok, the rest is in the misinformed or delusional category............................BTW, I have a limited quanity of grade AAAAAAAAAAAAAAAA poplar I'd be willing to sell for $200 per bd ft, the first 100 buyers will also receive some magic beans with their purchase... :D