Startup Stash - A curated directory of 400 resources & tools for startups
Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
Content Marketing Stack - A curated directory of content marketing resources
TweetFavy - The Growth Hacking Tool for Twitter. Marketing automation software / Growth Hacking tool designed to grow your social media influence and attract real, targeted and engaged Twitter followers.
StartupResources.io - Tightly curated lists of the best startup tools
Ryan Holiday - We Invest $500k in Sci-Fi Founders.