Upmetrics - Easy to Use Business Plan Software
Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
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.
Userfront - Know thy startup: metrics & triggers for growth
TopStartups.io - Backed by investors like Sequoia, A16Z, Benchmark. See the fastest growing startups in one place.
GoSquared - GoSquared Real-Time Web Analytics. See who's reading, commenting, joining, or buying on your website right now. Watch your traffic unfold.