Many of your site’s visitors may not be aware they can receive your site updates by email, with no work on your part.  Until RSS readership is mainstream, capitalize on the fact that most everyone has email and knows how to use it.
Read more about Rmail.  Visit the Rmail site.

RSS feeds subscription is one of the biggest mysteries surrounding business
blogging. That makes since because it’s one aspect of a blog that isn’t
“natural” to us.
If you follow the, admittedly correct, line of reasoning that there’s little
ostensible difference between a blog and a piece of content on a web page, then
building an online audience should make [...]