Starting March 23, 2015, you won't be able to publicly share images and video that are sexually explicit or show graphic nudity on Blogger.
Note: We’ll still allow nudity if the content offers a substantial public benefit, for example in artistic, educational, documentary, or scientific contexts.
Changes you’ll see to your existing blogsIf your existing blog doesn’t have any sexually explicit or graphic nude images or video on it, you won’t notice any changes.
If your existing blog does have sexually explicit or graphic nude images or video, your blog will be made private after March 23, 2015. No content will be deleted, but private content can only be seen by the owner or admins of the blog and the people who the owner has shared the blog with.
I'm also just curious how Google is planning to enforce this new policy considering how many blogs there are on Blogger.