productboard - Beautiful and powerful product management.
SaaS 1000 - Free exportable list of the fastest growing SaaS companies
ProdPad - ProdPad helps your team gather ideas, surface the best ones and turn them into product specs, and then put it all on a product roadmap.
Look at that SaaS - Inspiration and resources for SaaS founders
ProductPlan - Cloud-based product roadmap software solution
SaaS Funding Napkin - What does it take to raise capital in SaaS in 2018?