This post will be continually updated with links to other sites that those of you interested in learning more about ancient American textiles, textile techniques in general, or institutions that support textile research/appreciation
This is a great video on how to do Andean ply: www.youtube.com/watch?v=M5VlaR3t_7M
This is a website for a fiber company but they provide excellent charts comparing fiber quality and discuss the pros and cons of different grades for spinning: http://www.wildfibres.co.uk/html/fibre_size.html
I have created a Zotero group of Andean textile resources: https://www.zotero.org/groups/andean_textile_resources
This website has a handy tutorial on how to spin with a bottom whorl drop spindle
