Have you heard of Marla Cilley, a.k.a. The Flylady ? I hadn't, until my sister told me about her. She has a mailing list with 160,000+ members and a book that today ranks 136 on Amazon. (It was at 193 last week.) Apart from the book, which is mostly recapped on the Web site, she's not trying to sell anything; she just wants to help you get organized.
An email list that large is extraordinary. The site, too, is remarkable; it doesn't have the authenticity of the best weblogs, at least not at first glance, but there's something here.