There is also a link to the blog from the library website's home page. Click on any news item and you will be taken to the blog.
You can sign up for email alerts by typing your email address in the text box provided on the blog and clicking on 'Subscribe'. Your inbox will not be inundated because you will only receive one email per day if one or more new items are added to the blog. If no items are posted to the blog you will not receive any emails. It is also really easy to unsubscribe by following the instructions at the bottom of the email.