Blogger: Claim your blog
https://www.blogger.com/legacy-claim.gthe new Blogger. We've improved Blogger in a big way! In order to take advantage of it, you'll need to complete two simple steps to claim your blogs. Don't worry, your blogs won't be changed in any way. Confirm your old login. Use your Blogger username and password. We'll take all the blogs under this account and switch them to your Google Account.