It's 10% isn't it? I try to keep it at that whenever I write articles or have them written. It's working pretty well so far.
iweb is right... you'd be better off just starting from scratch instead of trying to make an expired domain work for you... You'd be saving...
You could try posting the video on your website or blog and then writing SEO focused content around it. That's what we've been doing.
Of course it does! Blogging is one of the most effective SEO tools you can use, particularly if you want to draw in traffic.
Separate names with a comma.