To create your own group, simply follow the steps outlined in this short video tutorial or in the text below.
Visit the Google Groups homepage. If you're not logged in, click the "Create a group" button. Log in with your Google Account, and enter your desired group name, group email address, and membership list to start the group creation process.
If you're logged in already, simply click on the "Create a group" button in the "My groups" box on the right-hand side of the page.
Creating a group is a two-step process. First, you name your group, create an email address for it, and set its access level. You'll have a chance to enter a description of your group, as well as select the "This group may contain content which is only suitable for adults" option. Please check this box if the group you're creating will contain material inappropriate for minors, regardless of whether the members of your group are adults.
Then, you're ready to add people to your group. To do this, you'll need the email address of each person you want to invite. Once you've added members to your group, you're done.