Eyploring YouTube

I'm one week into exploring YouTube and I finally found the help page that explains you can add a blog to your YouTube account. I've also been wanting to try to embed a Youtube video:

I have some questions about using YouTube which I will explore here and at the YouTube Wikia.

Eyploring?
y = f(x) and eyploring is something that comes after exploring. y = youtube and we are exploring what can be done with shared video.

My YouTube channel.