Artsy - A global platform for discovering and collecting art.
Streaks - The to-do list that helps you form good habits.
ArtMajeur - +1 Million original artworks, Free Shipping Worldwide, Low prices guaranteed, 14 days return: buy all the art you love on Artmajeur!
Taskful - Deadlines, meet your match.
WikiArt - The Encyclopedia of Fine Art
ToDoList - Windows desktop application to stay on top of your daily tasks.