Receive automatic email updates

Reid figured out how to add a widget to this blog that allows readers to receive automatic updates via email whenever I add a new post.  I hope you use it and follow me and I really appreciate your feedback whether it's public on the blog (thank you Margaret and Barbara for that) or privately thru email (thank you Lubos and Diane for those).  It's much more enjoyable to write when I get to hear your questions, comments and/or reactions.