IndiePage - All your startups, on a page
GrowthList - A crowd-sourced list of growth hacks
First 100 Users - Get your startup's first 100 users.
GrowthHackers Projects - Growth collaboration software for teams 📈
TopStartups.io - Backed by investors like Sequoia, A16Z, Benchmark. See the fastest growing startups in one place.
Marketing Examples - A gallery of real world marketing case studies. Updated every day.