For those interested in publishing any sort of content in the cloud, e.g. newsletters, essays, pamphlets, instructions, magazines, etc...you may consider:
Issuu - An e-publishing platform that enhances and customizes digital editions of your content that can be marketed and sold to target audiences. There are free and paid solutions.
Yudu - Both a digital publishing library and a marketplace where you can read, publish, buy, sell and share content. Anyone can publish in a range of formats to include reports, presentations, e-books, catalogs and more.
Blurb - The tools you need to make your own ebook, RL book or interactive journal.