Communifire - Enterprise Social Collaboration Software

Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

LS Intranet - LS Intranet is a corporate intranet that facilitates multiple employees collaborating on projects, and working in synergy.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Unily - Unily is a cloud-based intranet solution designed by SharePoint consultancy BrightStarr.

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.