I\'ve been struggling with these for months now.
I just changed them and the Facebook Debugger thinks everything\'s fine except for admins and app ID whih I hope I don\'
I see several problems with your code: - you are using the blog title to generate keywords?! - for individual blog posts og:type should be 'article' not 'blog'; - I don't think you can use an URL for article:author; - you don't specify either your Facebook admin ID or the app ID; - you should use the canonical URL instead of data:blog.homepageUrl to work around blogger's country redirection.
Here is my solution: Open Graph markup for Blogger [version 3]