Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
Hydropuzzle - Can you solve the mystery?
Content Marketing Stack - A curated directory of content marketing resources
Gritter - Greet in 314 characters or less — a Twitter parody
SaaS 1000 - Free exportable list of the fastest growing SaaS companies
Look at that SaaS - Inspiration and resources for SaaS founders