GrowthHackList - 100+ curated growth hacks for makers + early stage startups
Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
100 in 100 Challenge - Get 100 new paid users in 100 days
Your Growth Hacks Aren't Working - Free new book by Steli Efti on B2B customer acquisition
#buildinpublic - Discover what people are building in public
Spacedoo - Short actionable marketing hacks