Kablogerate

You should see a pencil icon following each blog entry. Clicking the pencil will allow you to edit the post immediately. You do have to be logged in your blogger account.

I also have a 'secret' email address that allows me to email a blog entry. The subject becomes the entry title and the body of the email is the body of the entry. I have it set to make it a draft and to not directly publish. I think you can set this up for yourselves also. Check the settings.