Avecora
SpeakHQ is like Twitter™ for groups. Status updates for groups or teams.

Status updates are efficient for communication and collaboration. Until now, they haven't been available for groups – a perfect place that short status updates could be used for collaboration.

SpeakHQ was a project completed in 18 hours and released to the public on 04 July 2008. See the full story here.

Simple to use.
Registering for SpeakHQ takes 20 seconds, and setting up a group and inviting your team or group members to it takes minutes. You can be running and sharing status updates in no time.

Public or private.
SpeakHQ isn't just for group updates. Public groups allow a discussion system or a sharing area to be built upon a certain topic, like world news, programming languages, or event planning. Private groups for teams allow only the people that you invite to the group to participate in it.

Completely free.
Communicating with your group or team through status updates is free forever. Registering takes 20 seconds, and you can use the group directory to find public groups that you might be interested in to get started.