You can use the commands in your Internet browser to send a link to the calendar to others.
The benefit of using a calendar on a SharePoint site is that others will be able to see it and add to it — but first they'll need to know that the calendar exists. An easy way to let others know of the calendar's existence is to send them a link.
You'll see the URL for the calendar at the top of your Web browser in the address bar (we've put a box around it in the picture). You can copy this URL and paste it into an e-mail message. Or if you're using Windows Internet Explorer, an easy way to send the link is to follow these steps:

In Internet Explorer, click the
File menu.

Point to
Send and click
Link by E-mail.
When you click Link by E-mail, you'll create an e-mail message that contains a link to the calendar. Then all that's left for you to do is to address the message and send it. You may also want to include a bit of explanatory text about the calendar, such as "Here's a calendar that we can all use to track important events and vacation schedules."