If you like this site, you can have it send you an email whenever there is something new to read. You can unsubscribe at any time.
You can also get emails whenever there are new reader comments.
That second option sends you an email about every new comment, which might be more than you care about.
Instead, if you comment on a page yourself, you will be given an opportunity to get emails when there are new comments on that page, or just when there are replies to your comment.