Geckoboard - Get to know Geckoboard: Instant access to your most important metrics displayed on a real-time dashboard.
GrowthHackList - 100+ curated growth hacks for makers + early stage startups
jSlate - jSlate is an open source dashboarding platform
Growth Hacking Sourcebook - The ultimate growth hacking sourcebook
Growth Race - All of your project growth metrics in a single view
Tiny Marketing Wins - Get a (small) marketing tip every day