Understanding the differences between primary and secondary Tumblr blogs is helpful:
- Primary Tumblr’s are best for your public, “this is me!” profile. You can comment on other blogs, but you can’t invite coauthors or use password protection.
- Secondary Tumblr’s are good for classroom collaboration – you can invite coauthors, and then password protect your work. This would be a good way to introduce students to Tumblr without the public spotlight.