I saw this link about tips for starting bloggers...
Some of them are general tips, and other things are pretty technical, but I was able to use tip #8 about Feedburner which allows readers of your blog to subscribe via e-mail and get an update anytime you update (recall blogger.com only allows us to signup up to 10 readers to subscribe to your blog-- If everyone subscribes, then there is no reason to have to send out an e-mail to remind folks when you update your blog. It will also automatically send out an e-mail when you make a change to your blog--Woo Hoo!
So, with Feedburner I was able to add what's called a widget to my blog. This gives you a form on your blog that allows readers to sign up to receive an e-mail whenever you publish new content--with an unlimited number of subscibers. Feedburner is part of google so it is legitimate and not dangerous in terms of SPAM!