Pusher Beams - Send push notifications programmatically at scale

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

Mentioned By - Learn when your site is mentioned by other sites for free

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Now Push Notify - iOS does not support browser notifications today, but Now Push Notify makes this possible.

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.