You are more than welcome to subscribe to the feeds provided on this site, in fact it would be nice if you did. This will allow you to keep up to date with any atricles or items as they are posted.
Blog feed - http://feeds.feedburner.com/pwhitrowblog
Shop feed - http://feeds.feedburner.com/pwhitrowshop
Feeds linked through Feedburner
You can find all you need to know about Really Simple Syndication here: What is RSS?