Anyone who has engaged in group conversations by email knows how unmanageable the threads can become. Threadable seeks to help contain the sprawl of back-and-forth messaging while maintaing the convenience of the traditional mailing list. Sign up for the service is free and easy. Readers simply enter their email address and a password. Then they enter the email addresses of those colleagues and friends they wish to include in their mailing lists. Threadable then opens to a refreshingly simple platform, where users may start conversations and respond to the conversations of others. There are several clever functions that make Threadable helpful. First, users can subdivide discussions, so that some members may have side conversations without filling up the inboxes of others. Second, users may "mute" conversations that don't involve them, allowing for future messages from that thread to skip their inbox. Third, email threads can be turned into actionable tasks that can be efficiently checked off upon completion. For boards, classes, work assignments, or other other groups Threadable is a free, workable list management solution.