Makerlog - Makerlog is the dead-simple task log that helps you stay productive and ship faster.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
WIP.co - Work in progress. We are a community of makers who help each other ship product.
Opensource Builders - Find open-source alternatives to commercial apps
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
switching.software - Ethical, easy-to-use and privacy-conscious alternatives to well-known software