[Gregg Bell]

I was listening to a webinar about increasing traffic to your blog and it made me realize how antiquated my blog is. The speaker stressed the importance of getting an email sign-up over an RSS feed. (I don't even know what an RSS feed is.) On my blog I have a mailchimp email sign-up to be notified when my next novel is released. On the bottom there's this:

Subscribe to: Posts (Atom)

I have no idea what that is either.

I saw someone else's blog with a signup thing. I'm assuming it's an RSS thing because it says nothing about email. I've circled some things to ask about and wonder if any of you could guide me as how to do this stuff. (see screenshot)

Thanks.