Does exact match domains rank better?

Does posting frequency matters in SEO? I mean how many times do you post per week.

I am talking about small tips and hacks. That helps newbie bloggers.

Any reviews, walk throughs or tutorials are much appreciated.

Earning are gone to hell. Why is this happening?

Got two domains one exact name of the product and another with an exciting keyword in the niche, which one to choose?

Are there any good groups? Closed ones preferable.

What will be your content strategy if there is no content in a niche?

How do people generate leads through forums? And not to mention get tremendous amount of free traffic.

A typical newsletter method is that you brief your audience with your site's updates, once or twice a week. And you get their responses and also targeted traffic as they click back. This is a good method to generate traffic and leads as well.

And then comes the email marketing method in which rather giving updates about your blog you promote some or many products.

Some marketers prefers both and some choose from on of them. Which one do your prefer?