Analytics Pack - A curated directory of the best startup metrics
Userfront - Know thy startup: metrics & triggers for growth
Baremetrics Benchmarks - Benchmark your SaaS metrics with other startups
Open Benchmarks - Live SaaS metric benchmarks from over 600 companies
Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
SaaS Metrics Refresher from ChartMogul - A 10-week crash course in SaaS metrics 📊