Go to the top right of the Google page and click on 'Sign In.' Then, on the next page, click on the 'Sign Up' button at the top right and follow the directions for creating a Google account. You do not have to use the account for email, and you may even use your regular email address as part of your Google login. There are benefits to having a Google account beyond the blog, like using Google Docs and personalizing Google News. However, you can just use the account to access the blog.

Once your account has been created, you can respond and post to the blog. Happy blogging!

After you create your account with an email address and password, go back to the blogs and posts page, find "Comment" in blue under the one you want to comment on, click it, and now you can write.