How important is it to have keywords in a domain name?

How would you explain "The Power of Keyword Domains" to someone looking to take a decision what kind of domain to go for?"

SEO Tips by Matt Cutts

Basic SEO tips from Google Matt cutts

How To Structure Your Website For Max SEO

See how I structure my website to get fully 'automated' traffic! Its not as hard as it may sound. A newbie could do this!

Getting Internet website traffic is the 'Holy Grail' of the WWW. Every webmaster needs visitors. A traffic equals visitors. Master this traffic trick and get your site to fly!

Is comma a separator in a title tag?

More and more websites started using comma (,) as a separator in title tag (less pipes or dashes). Is comma really a separator OR if it's better for the visitors it's better for SEO ?