Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
Clearbit - Clearbit provides Business Intelligence APIs
Sumry - The human way to get hired
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Normal Software - Insights and ideas from businesses outside of tech
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.