Wood background becoming a trend in Web design?

Aside from the grunge style that got the interests of designers, I found a few sites, mostly portfolios, that has common theme — wood designs. Was it or is it or will it be the new trend this year? Below are the 22 out of 29 websites I found interesting.

aj-design.cn

alexbuga.com

carsonified.com

chamadigital.com

cssem.com

davidhellmann.com

destinationorganic.co.nz

eighty4.ca

freshlypainted.co.uk

hidalgofoto.net

ianfarish.com

kendo.bg

labarraca.es

nanamiart.com

nebonmedia.com

parketykulik.cz

philippe.plaideux.free.fr

thirdandgrand.com

tff4.com

volume5.co.uk

vslashm.com

whoism.ca

What can you say?