You can migrate an existing blog from one context to another. For example, you can
migrate a space blog so that it becomes a group blog. There aren't any restrictions --
you can migrate from any context to any other context. When you migrate, all of the
blog's posts and settings will move to the destination context.
Note: Keep in mind that
migrating a blog to another context can change how the blog will be managed and
administered once it's migrated. For more information, see
Managing Blogs.