By A Mystery Man Writer
Substitute – This is Knit
The #1 comprehensive guide to yarn substitution
How to substitute yarn
The Knitter's Guide to Yarn Substitution - A Bee In The Bonnet
Yarn Substitution Guide with Chart
The Ultimate Resource for Where to Find Discontinued Yarn - Crochet Nerd
Yarn Substitution - Zeens and Roger
Using a different yarn for your pattern
Yarn Substitution Chart and Guide - free download
Kate Davies Designs Àrd Thìr
A Guide to Yarn Substitution - Skein