Evernote is a cross-platform, freemium app designed for note taking, organizing, and archiving.
Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
ToDoList is software in the category of Task Management, Project Management, Productivity, “Getting Things Done” (GTD), Scheduling, and Collaboration.
Calendify is an event community that brings together individuals and event organizers. Calendify lets you easily create event calendars and publish them in minutes. Anyone can subscribe, share, and comment on them to stay up to date and network with others.