Content Marketing Stack - A curated directory of content marketing resources
Startup Marketing Playbook - The how-to guide for new B2B marketing leaders
Sales & Marketing Stack Wiki - Curated articles about modern sales & marketing technology
Marketing Teams and Slack - A handbook for marketing teams to make the most out of Slack
Crowdstack - Curated directory of crowdfunding resources
Podkite - All of your podcast's rankings and reviews in one place.