Commenting!:
Want to make sure that EVERYONE can comment on your blog?
If you want to add Name/URL or Anonymous then follow these few steps!
Ok, so first go to your dashboard! (If you do not know how just ask!)
Go to the blog that you want to set and click SETTINGS
Once you are there look up at the little task bar at the top (Basic, Publishing, Commenting, etc) and click COMMENTS
You will see at the second from top the "Who Can Comment?" Setting. Click Anyone - Includes Anonymous Users