SaaS 1000 - Free exportable list of the fastest growing SaaS companies
productboard - Beautiful and powerful product management.
Look at that SaaS - Inspiration and resources for SaaS founders
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.
Inside SaaS Sales - 1000+ sales emails and voicemails from top SaaS companies
ProductPlan - Cloud-based product roadmap software solution