SaaS 1000 - Free exportable list of the fastest growing SaaS companies
Readwise - Effortlessly rediscover and organize your Kindle highlights
Look at that SaaS - Inspiration and resources for SaaS founders
Knotes - An efficient, beautiful Kindle highlights & notes manager
Inside SaaS Sales - 1000+ sales emails and voicemails from top SaaS companies
Clippings.io - Organize the notes you make on your Kindle