Content Marketing Stack - A curated directory of content marketing resources
Startup Stash - A curated directory of 400 resources & tools for startups
HeyShare - Tag products to your posts and get rewarded
Weavr Cafe - Weavr is a platform to build active learning communities.
StartupResources.io - Tightly curated lists of the best startup tools
Marketing for Devs - A book for programmers who want to learn marketing.