wikiHow - wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual.
Makerlog - Makerlog is the dead-simple task log that helps you stay productive and ship faster.
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
MakerWidget - An embeddable portfolio for your (side) projects
Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.