Ravelry
Used by 4 peopleravelry.com ↗

“For knitting, I use Ravelry to record all of my project data and find new patterns to knit.”
Kris Howard Interview, Tech leader, blogger, crafter, speaker · via Uses This 
“It came to me many years ago, but it's got such a steep and inscrutable learning curve that until Ravelry took off, it sat in the barn collecting dust.”
Eileen Webb Interview, Director of Strategy and Livestock (webmeadow) · via Uses This 
“I keep track of my projects and sell patterns on the giant online database, Ravelry.”
Lorna Watt Interview, Yarnbomber (Knits for Life) · via Uses This