Embed a YouTube Video into Blogger

If this is your own video, you need to upload it to YouTube first, you an access your YouTube account from the Google Grid, just scroll down; once there click on Upload. In Video Manager you can see any videos you've uploaded.

Copy the Embed Code

First you need to grab the embed code from the video in YouTube. If it's your own video, you probably want to set it to 'unlisted', if you set it to private no one will be able to see it except you.

Embed the Video into Blogger

Edit the post, and switch to HTML view, paste in the embed code (just stick it at the bottom, or the top if you're confused). Now switch back to Compose view, and you will see the video, you can centre it just like you would an image.