Group blogs are blogs that allow multiple users to post and edit content. In order to post to a group blog, you must be added as an author by a blog admin. In order to be added as an author to a group blog, you'll likely have to be a active member of the group, in good standing. You can request membership by commenting on an admin's post and asking for authorship. Please note, each group blog operates differently, depending on how the owner and admins run it, so certain blogs may have different methods of acquiring authorship.
Group blogs are also created as a byproduct of the account merge process. After merging your accounts, your merged account's blog becomes a group blog which you own. You can add admins and authors to your group blog and create your own community!
Note: Merging is permanent and should be done at your own risk!
To post to a group blog, create a post as you normally would. When you're ready to publish your post, click the Publish on field to select where you want your post to be published to. Your main blog (usually your username) will always be an available choice, and if you are an author on any group blogs, you'll see those options appear as well.
If you begin to compose your post while on your blog page, your main blog will be selected as the default. If you're an author on a group blog and begin to compose on the group blog page, the publish option will be set to that blog by default.