TRY Studio - Try or teach—Personalized lessons in all things creative.
Startup Playbook by Hatch Quarter - A guide to building your startup
Craftsy - Lynda for Crafts and DIY
On Slack by Standuply - The most extensive book on using Slack to the utmost
PreQuilt - PreQuilt is a design tool for creative quilters
CS183B - Startup Class - Stanford class taught by Sam Altman & guest speakers