On Jewish Books, Jewish Bookselling and Jewish Booksellers
Rabbi Slifkin's blog (http://www.rationalistjudaism.com/) is also powered by Blogger and it has an option to "Subscribe via email" (Delivered by FeedBurner). It's found on the right hand side of the page there.
Thanks for the recommendation. I just added the option on the upper right side of the blog.
Thank you.S. Appel