There are two RSS feeds:

Everything:

http://feeds.feedburner.com/TheBrooksReview

And the slightly more secret articles only feed:

http://feeds.feedburner.com/TBRArticles

The latter will only give you those posts that you normally see in your RSS reader with the “∞” symbol before them.

You can also subscribe on your Kindle (Amazon chose the price, not me). That is the same as the articles feed, but pushed straight to your Kindle:

Kindle Page