Pnamur - Pnamur is a smart tool that helps you easily estimate complex projects using a top-down approach.
Flyspray - The bug killer!
Armadill.me - Free remote work reporting tool
Collabtive - Collabtive is a web-based project management software.
Remote Work 2020 - The ultimate guide and report for remote work in 2020
ITM Platform - Cloud-based Project Management Solutions