Some websites focus on first-time visitors.
“Have a banner, this is our newsletter, check out our social networks, we have a blog, too, see our partners”.
Other websites focus on returning visitors.
“You came to see a product? Here’s the product, without other things to distract you. We’re sure you’ll be able to find out about our blog/newsletter if you really care for it. You came here to read a blog post? We won’t force you to visit our website. It’s fine just to read.”
I prefer the “returning visitors”-focused websites. Unfortunately, they tend to be rare.