Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
DiscoverOrg - DiscoverOrg is an IT sales intelligence platform providing technology marketers access to data, IT org charts, and real time projects.
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.
Clearbit - Clearbit provides Business Intelligence APIs
Ryan Holiday - We Invest $500k in Sci-Fi Founders.
Datanyze - The sales prospecting tool powered by technology data