I have wanted to put a "subscribe by email" link on the MLM Blog for some time and I finally found one that I like. It’s over there, in the left side bar. Squeet will also send you updates on any blog once you subscribe…Squeet is pretty sweet. (har har)
You may also want to take a look at Feedlinx (http://www.feedlinx.com/publisher) — Not only does it allow your readers to subscribe via email, they can use the same subscription for any feed reader on any machine. As a bonus, they'll always know which posts they've already seen because Feedlinx tracks what you've read.