Baremetrics Benchmarks - Benchmark your SaaS metrics with other startups
Transferslot - Easily buy and sell side-projects
Open Benchmarks - Live SaaS metric benchmarks from over 600 companies
MicroAcquire - A free & anonymous startup acquisition marketplace
ChartMogul API - SaaS metrics and analytics for any billing platform
Flippa - Flippa is a platform for trading websites.