Email marketing is efficient to get traffic!

yes i think email is the best strategy in marketing you can get more traffic through email marketing

Yes, for sure if they've opted into your email list, you can regularly send them emails regarding your new blog posts.

This will send traffic to your website.

It is one of the popularly used method for getting traffic.
Preferably quality and opt-in email database.

I Hope e-mail marketing will have much impact for business sites.

For getting more leads, email marketing is best, just make sure your email list is well maintained with live email ids.

As Mentioned earlier it is good and efficient when you make it as good as the visitors fall into that by seeing it. But If it's not made in such a way you may experience high bounce rate. But one more thing it should not goes into spam folder of users if it No use of such email campaign. waste of money and efforts.

Its hard to do an effecting email campaign. Spamming won't get you anywhere... there are easier ways to get traffic