Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.

TaskBoard - A Kanban-inspired app for keeping track of things that need to get done.

SendPulse - Maximizing e-mail marketing open rates automatically

LeanKit by Planview - See how Planview LeanKit enables engineering teams across all levels of the organization with a visual work delivery tool to apply Lean management principles to their work, helping them work smarter and deliver faster.

mlmmj - Mlmmj is a simple and slim mailing list manager (MLM) inspired by ezmlm.

My Personal Kanban - This is a one page HTML/JavaScript application for people who would like to use simple and basic...