There are many calendar options that are available for groups to share online and your choice of calendars will depend on the needs of the group you are serving or working with.

Permissions for updating calendars must be granted for all users regardless of which online calendar you are electing to use. There are some keys to selecting the right online calendar program, you simply need to make sure that you look at the needs of the entire group before you commit to it's use and make sure that every participant in the group is capable of using the technology that you are selecting.

First make a list of what you want to use the calendar for. If the calendar is to share regular meetings, then you can simply create simple calendar on your computer and through networking share the calendar with others. Many companies do this internally.

If you are with a group of remote people then you have a different task at hand and that will involve carefully researching your online options.

The calendars that immediately come to mind can be found at google or at zoho and both will provide you with easy access for as many people as you care to invite by sending a simple email and password instructions to more complex online calendars that require

Free online calendar is a program that allows you to update a calendar online and you can view it either online or download it to your computer and share with others via email, famundo offers free group calendars as well.

Simply review your options and assess your groups technology capabilities and you'll find the right calendar for you!