iOS Design Kit - The newest library of native iOS templates
ShareIt by SocialPilot - Free Content Curation and Influencer Discovery Tool
Sketch Repo - Collection of resources for anyone who uses Sketch
The Content Odyssey Newsletter - Every other week I discuss one B2B content experiment
SketchApp.rocks - Index of all awesome things related to Sketch.
INDX - INDX is a focused place for self-directed learning.