AddThis - AddThis free website tools include share buttons, targeting tools and content recommendations help you get more likes, shares and followers and keep them coming back.
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.
Sharingbuttons.io - Quickly generate social sharing buttons with a tiny performance footprint.
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
AddToAny - Share buttons by AddToAny, the universal sharing platform for websites and apps.
Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.