C-Organizer - C-Organizer is a robust software tool designed for the professional manager that permits them to organize business activities altogether.
Quip - Quip is the modern productivity suite that simplifies your life and helps your team get work done faster.
MSD Organizer - MSD Organizer one of the best software providing you a personalized experience with the complete visibility of the personal and professional manager.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Info Select - Info Select is a Personal Information Manager that organizes Internet data, notes, to-do's...
Trello - 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.