RSS Feed Widget

I just made the switch from Blogger to WP and I’m getting used to the differences.

One of the differences was that in blogger someone could sign up as a “follower” and they would get the emails whenever I added a post.

So far I have not been able to figure out how to add that feature in WP.

I don’t know if it has to do with the theme I’m using but if someone could point this newbie in the right direction, I would appreciate it very much.

The site is https://www.NutBugs.com

Also I just added the RSS widget but it’s asking for a feed url. Where do I get this and is this the preferred method?