Interfacer - Collection of more than 200+ free design resources
ShareIt by SocialPilot - Free Content Curation and Influencer Discovery Tool
Designer Mill - Collection of Best Free Design Resources
The Content Odyssey Newsletter - Every other week I discuss one B2B content experiment
Product Disrupt - A design student's list of resources to learn Product Design
INDX - INDX is a focused place for self-directed learning.