http://makersrow.com - this is probably your best bet.
I wouldn't use a website though.
I'd talk to entrepreneurs and creators of high tech textiles in the USA. Look specifically at http://titintech.com and Klymit jacket. Reach out to those founders and learn as much as possible. Both of them are really nice guys and might be better equipped to share horror stories as well.
Also be sure to look at http://reddit.com/r/textiles