MyHub Intranet - MyHub is an cloud-based intranet solutions that help businesses to communicate and collaborate.
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.
Pobuca Connect - Connect with your contacts.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
HelpJuice - Helpjuice is easy-to-use knowledge base software that guarantees. 50% less support emails and happier customers.
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.