How To Move Blogger Blog To Another Email Address
2.Click on "Settings" on your dashboard
3.Now click "Permissions" tab.
3.Under Blog Authors click on the "ADD AUTHOR" button.
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6.Now log again with your previous(old) gmail account that you made invitation, go to Blogger Dashboard-->Settings-->permission and click give admin permission.
7.Now your blog can be managed by 2 email account, you can delete one (old) if you want.
Now you are done.