Pricing Page Teardown from ProfitWell - Data and banter behind the best (and worst) pricing pages
SaaS Pricing Page eBook - Learn from the best practices of over 270 top SaaS companies
EnterpriseReady - A guide to building the SaaS features that enterprises love.
Stripe Billing - A set of tools for billing and subscriptions
SaaS Pricing Calculator - Figure out the right pricing for your SaaS product
Baremetrics Augmentation - Merge SaaS metrics w/ external data to get the whole picture