MarketPlan - Plan, execute, analyze & optimize your marketing
Startup Stash - A curated directory of 400 resources & tools for startups
PromoRepublic - PromoRepublic is an online editorial calendar for social media marketers and library of custom designed templates and post ideas for social networks. The calendar is stuffed with content for latest trends, important events’ and holidays notifications
The Influencer Marketing Stack - Free resources to launch a killer campaign
SENDER - Easy to use, powerful and affordable email marketing application.
Makerbook - A directory of the best free resources for creatives