Button for Google Calendar™ - See your daily schedule and join meetings in one-click.
Add to Calendar Generator - Generate 'Add to Calendar' buttons for your website
Add-to-Calendar Button Generator - This open source projects lets everybody create amazing buttons, where users can add events to their calendars.
AddEvent - AddEvent is an Add to Calendar button for one-time and multiple events.
Vimcal - Vimcal is the world’s fastest calendar, beautifully designed for people who work remotely and live in their calendars.
Digital inspiration - Digital Inspiration is a popular how-to website that covers computer software, mobile apps, video...